{"id":97861,"date":"2023-09-08T07:47:33","date_gmt":"2023-09-08T05:47:33","guid":{"rendered":"https:\/\/aquainfo.nl\/?p=97861"},"modified":"2026-04-28T13:09:32","modified_gmt":"2026-04-28T11:09:32","slug":"18-2-drip-water-changes","status":"publish","type":"post","link":"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/","title":{"rendered":"18.2. Drip Water Changes"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87_1 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#182_Drip_Water_Changes\" >18.2. Drip Water Changes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#Setup_of_a_System\" >Setup of a System<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#High_Pressure_Systems\" >High Pressure Systems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#Low_Pressure_Drip_System\" >Low Pressure Drip System<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#Using_a_Reservoir\" >Using a Reservoir<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#Chlorinated_Water\" >Chlorinated Water<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#RO_Drip_System\" >RO Drip System<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#A_Drip_Set-up_that_is_Truly_Impressive\" >A Drip Set-up that is Truly Impressive<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#Drip_Systems_in_More_Depth\" >Drip Systems in More Depth<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#Rate_of_Drip\" >Rate of Drip<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#147_Overflow_Devices\" >14.7. Overflow Devices<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#Other_Water_Change_Systems_that_I_do_NOT_Recommend\" >Other Water Change Systems that I do NOT Recommend<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#More_Information_on_Water_Changes\" >More Information on Water Changes<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#181_Aquarium_Water_Changes\" >18.1. Aquarium Water Changes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#1811_Water_Changes_in_Depth\" >18.1.1. Water Changes in Depth<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#1812_Water_Change_Math\" >18.1.2. Water Change Math<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/#1813_Water_for_Water_Change\" >18.1.3. Water for Water Change<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"182_Drip_Water_Changes\"><\/span>18.2. Drip Water Changes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A continuous drip water change system uses permanent plumbing to continuously and automatically change the water in one or more aquariums via a 24\/7 drip. Drip water systems require two pipes into the aquarium area. One line of pipe comes from a water supply such as a municipal water supply or a well and supplies a slow \u201cdrip\u201d of water to aquarium(s). The other piping line drains the \u201cdrip\u201d from the aquariums. If you have certain types of house construction, you can do continuous (\u201cdrip\u201d) water changes. This is the best way to do water changes by far.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Drip water changes do&nbsp;NOT&nbsp;replace good filtration. In order to have healthy fish and crystal clear water one has to remove things like dissolved organic compounds from the water on the order of 50% every ten minutes. A drip system would need to literally pour the water in a large continuous stream to be the equivalent of a filter. So heavy filtration remains the key to a healthy aquarium. UV remains very useful in systems with a drip water change. A drip water change system is&nbsp;ONLY&nbsp;a water change system, not the equivalent of a filter.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"892\" height=\"462\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Geophagus-Cichlid.jpeg\" alt=\"Geophagus Cichlid\" class=\"wp-image-97862\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Geophagus-Cichlid.jpeg 892w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Geophagus-Cichlid-300x155.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Geophagus-Cichlid-150x78.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Geophagus-Cichlid-600x311.jpeg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Geophagus-Cichlid-768x398.jpeg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Geophagus-Cichlid-441x228.jpeg 441w\" sizes=\"(max-width: 892px) 100vw, 892px\" \/><figcaption class=\"wp-element-caption\">Geophagus Cichlid<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Setup_of_a_System\"><\/span>Setup of a System<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-group has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">There are many ways to set up a continuous drip water system:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A high-pressure system that has a high pressure to the aquarium, where a needle valve meters a small drip into the aquarium(s). Best used with well water.<\/li>\n\n\n\n<li>A low-pressure system where the water flows through a pressure regulator before it enters the living space. The pressure regulator drops the pressure down to a low pressure. This low pressure then feeds to the aquarium(s) via a needle valve. Best used with well water.<\/li>\n\n\n\n<li>A low-pressure system where a level cut-off switch in another room (or a garage, porch, basement or crawl space) feeds water to a reservoir. The reservoir has an active biofilter or a micropump pumping conditioner to the reservoir. The feed is then out of the reservoir via a small low-pressure pump (or gravity feed) which transports a small flow of water to the aquarium(s) through a needle valve. Best for municipal water which is chlorinated or has chloramine.<\/li>\n\n\n\n<li>The drain can be to the outside or to a house drain.<\/li>\n\n\n\n<li>There are many overflow devices that can reliably handle the aquarium(s) overflow to the drain if the tanks are not drilled.<\/li>\n<\/ul>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">All these variations can be made to work quite well.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"1024\" height=\"578\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lichnochromis-acuticeps-\u2013-Malawi-Gar.jpeg\" alt=\"Lichnochromis acuticeps \u2013 Malawi Gar\" class=\"wp-image-97864\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lichnochromis-acuticeps-\u2013-Malawi-Gar.jpeg 1024w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lichnochromis-acuticeps-\u2013-Malawi-Gar-300x169.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lichnochromis-acuticeps-\u2013-Malawi-Gar-150x85.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lichnochromis-acuticeps-\u2013-Malawi-Gar-600x339.jpeg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lichnochromis-acuticeps-\u2013-Malawi-Gar-768x434.jpeg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lichnochromis-acuticeps-\u2013-Malawi-Gar-990x559.jpeg 990w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lichnochromis-acuticeps-\u2013-Malawi-Gar-441x249.jpeg 441w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Lichnochromis acuticeps \u2013 Malawi Gar<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The biggest challenge to using a drip system is that there needs to be a way of getting plumbing to the aquariums. If one\u2019s house is on a concrete slab and the aquarium is on an inside wall with no bathroom on the same wall, drip systems are a problem. But if you have many aquariums in your basement, in a garage, or in a separate building of your own, a drip system is quite feasible. A house on pier and beam construction or with a basement is also easily plumbed for a drip system.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote has-vivid-red-background-color has-background is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Note that we recommend all the plumbing for the drip system which is inside the house be done in piping approved for use in potable water systems per the uniform building code (KIWA approved for Holland). In most areas of the USA this is polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC), cross linked polyethylene (PEX) or copper tubing.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Do not use leak-prone tubing systems along the lines of beer tubing, air line tubing, or garden drip systems. Do not use barbed fittings or compression fittings. Do not use corrugated \u201cflex\u201d tubing. Systems that do not use approved \u201cto code\u201d plumbing frequently fail and can cause a huge amount of damage. The damage is&nbsp;NOT&nbsp;covered by insurance if the plumbing is not up to code.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"914\" height=\"423\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Super-Blue-Hybrid.jpg\" alt=\"Peacock Super Blue Hybrid\" class=\"wp-image-97866\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Super-Blue-Hybrid.jpg 914w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Super-Blue-Hybrid-300x139.jpg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Super-Blue-Hybrid-150x69.jpg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Super-Blue-Hybrid-600x278.jpg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Super-Blue-Hybrid-768x355.jpg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Super-Blue-Hybrid-441x204.jpg 441w\" sizes=\"(max-width: 914px) 100vw, 914px\" \/><figcaption class=\"wp-element-caption\">Peacock Super Blue Hybrid<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">We use only schedule 40 PVC (KIWA approved for Holland) for both the supply lines and the drain lines. And we are religious about using both solvents and sandpaper to pre-treat the PVC joints so they can\u2019t possibly fail. We have had two plumbers that failed to do this and two flooded houses as a result.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Also expect to spend some time in your local plumbing supply outfit figuring out the fittings for this. There are typically a lot of adaptors and transitions needed for a good installation. No one sells an \u201cAquarium Drip Irrigation System or Kit\u201d.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"760\" height=\"603\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pterophyllum-scalare-Angelfish.jpeg\" alt=\"Pterophyllum scalare -Angelfish\" class=\"wp-image-97868\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pterophyllum-scalare-Angelfish.jpeg 760w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pterophyllum-scalare-Angelfish-300x238.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pterophyllum-scalare-Angelfish-150x119.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pterophyllum-scalare-Angelfish-600x476.jpeg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pterophyllum-scalare-Angelfish-441x350.jpeg 441w\" sizes=\"(max-width: 760px) 100vw, 760px\" \/><figcaption class=\"wp-element-caption\">Pterophyllum scalare -Angelfish<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"High_Pressure_Systems\"><\/span>High Pressure Systems<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Use half inch schedule code approved piping to get to directly over the aquarium. Then transition to 1\/4th inch NPT plumbing (obviously outside the USA this will be metric). Directly at the aquarium transition to two brass needle valves on a high pressure system or a single needle valve on a low pressure system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On a high pressure system open up both of the valves completely. Then reduce the flow in one to a fast drip. Then use the other valve to reduce to the slower drip rate one desires. I find this setup necessary as the needle valves seem to be difficult to control when only one is in a high pressure system. Two in series work much better. This is the needle valve I\u2019m talking about:<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"545\" height=\"725\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/needle-valve.jpeg\" alt=\"\" class=\"wp-image-97870\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/needle-valve.jpeg 545w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/needle-valve-300x399.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/needle-valve-150x200.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/needle-valve-226x300.jpeg 226w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/needle-valve-113x150.jpeg 113w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/needle-valve-441x587.jpeg 441w\" sizes=\"(max-width: 545px) 100vw, 545px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Note there are a lot of different arrangements which will accomplish the same thing. A pressure reducer with a needle valve will also work well. It just costs more. Just drop the pressure to 1 to 5 psi (0,05 to 0,3bar) and then add a single needle valve.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I cannot emphasize enough that if the system is inside a dwelling one&nbsp;MUST&nbsp;use piping approved by the uniform building code for use with potable water systems. Do not use compression fittings and something like irrigation tubing or aquarium air tubing fittings without hose clamps. The standard irrigation tubing or aquarium air tubing fittings&nbsp;WILL FAIL. And a high pressure system can put out an amazing amount of water overnight into the wood of a home. And insurance will&nbsp;NOT&nbsp;cover the damage (insurance only covers plumbing failures where the plumbing met code).<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"655\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-argenteus-1024x655.jpeg\" alt=\"Maskaheros argenteus\" class=\"wp-image-97872\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-argenteus-1024x655.jpeg 1024w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-argenteus-300x192.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-argenteus-150x96.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-argenteus-600x384.jpeg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-argenteus-768x492.jpeg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-argenteus-990x634.jpeg 990w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-argenteus-441x282.jpeg 441w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-argenteus.jpeg 1100w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Maskaheros argenteus<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Low_Pressure_Drip_System\"><\/span>Low Pressure Drip System<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Put a water pressure reducing valve in a place where it won\u2019t freeze. Then move the water to one\u2019s aquariums through low pressure pipes per the building code in your area. Drop the pressure in the incoming water pipes to 1 to 5 psi (0,05 to 0,3bar) with the pressure reducing valve. This is great for multiple tanks in a home.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"671\" height=\"1024\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/water-pressure-regulator-671x1024.jpeg\" alt=\"water pressure regulator\" class=\"wp-image-97874\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/water-pressure-regulator-671x1024.jpeg 671w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/water-pressure-regulator-300x458.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/water-pressure-regulator-150x229.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/water-pressure-regulator-600x916.jpeg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/water-pressure-regulator-196x300.jpeg 196w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/water-pressure-regulator-98x150.jpeg 98w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/water-pressure-regulator-441x673.jpeg 441w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/water-pressure-regulator.jpeg 700w\" sizes=\"(max-width: 671px) 100vw, 671px\" \/><figcaption class=\"wp-element-caption\">water pressure regulator<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">By separating the high-pressure incoming tap water piping from the low-pressure internal piping, one simplifies the installation somewhat and prevents disasters from a high-pressure line rupturing or leaking. It is also easier to get low drip rates. Needle valves don\u2019t work very dependably with high pressures but work great with low-pressure water.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">With a low-pressure system at the aquariums, it is&nbsp;POSSIBLE BUT NOT RECOMMENDED&nbsp;to use flexible lines to the aquarium with push-on pressure fit fittings. But one has to use both beverage tubing and hose clamps. One can use 1\/8\u2033 ID X 1\/4\u2033 OD X 1\/16\u2033 wall clear beverage tubing. But modify the push-on press fit fittings by using \u00bc inch hose clamps over the press fit tubing connections. The clamps mean it won\u2019t come loose and flood the house. There are no clamps that will work with aquarium air line tubing and fittings so aquarium air line tubing cannot be used, even in a low-pressure system.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"461\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Water-drip-installation-1024x461.jpg\" alt=\"Water drip installation\" class=\"wp-image-97878\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Water-drip-installation-1024x461.jpg 1024w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Water-drip-installation-300x135.jpg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Water-drip-installation-150x67.jpg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Water-drip-installation-600x270.jpg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Water-drip-installation-768x346.jpg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Water-drip-installation-990x445.jpg 990w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Water-drip-installation-441x198.jpg 441w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Water-drip-installation.jpg 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Water drip installation<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"461\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Overflow-on-the-left-next-to-it-drip-hose-1024x461.jpg\" alt=\"Overflow on the left, next to it drip hose\" class=\"wp-image-97880\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Overflow-on-the-left-next-to-it-drip-hose-1024x461.jpg 1024w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Overflow-on-the-left-next-to-it-drip-hose-300x135.jpg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Overflow-on-the-left-next-to-it-drip-hose-150x67.jpg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Overflow-on-the-left-next-to-it-drip-hose-600x270.jpg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Overflow-on-the-left-next-to-it-drip-hose-768x346.jpg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Overflow-on-the-left-next-to-it-drip-hose-990x445.jpg 990w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Overflow-on-the-left-next-to-it-drip-hose-441x198.jpg 441w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Overflow-on-the-left-next-to-it-drip-hose.jpg 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Overflow on the left, next to it drip hose<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Note I prefer half inch(internal size) schedule 40 PVC even for low pressure systems. For europe 20mm outer dimensions with kiwa certification. It is just a lot easier and very reliable. If one steps on a beverage tubing you can inadvertently dislodge it from a fitting and get a leak. Step on a properly joined schedule 40 PVC joint and nothing happens.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"1024\" height=\"581\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pink-Flame-Peacock.jpeg\" alt=\"Pink Flame Peacock\" class=\"wp-image-97882\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pink-Flame-Peacock.jpeg 1024w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pink-Flame-Peacock-300x170.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pink-Flame-Peacock-150x85.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pink-Flame-Peacock-600x340.jpeg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pink-Flame-Peacock-768x436.jpeg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pink-Flame-Peacock-990x562.jpeg 990w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Pink-Flame-Peacock-441x250.jpeg 441w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Pink Flame Peacock<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Using_a_Reservoir\"><\/span>Using a Reservoir<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">With chlorinated water it is best to use a reservoir to remove the chlorine or chloramine. In Tempe Arizona I had a system where I had a tank on a high stand on a porch outside my home. I had a toilet float valve that controlled the high pressure water flow from the Tempe water supply. The outside tank had a six inch (15 cm) deep gravel under-gravel filter on it. I would add some food every few days to keep the undergravel active and \u201calive\u201d.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The water fed via gravity (i.e. very low pressure) to some ten aquariums in the house. The feed was via half inch schedule 40 PVC (outside 20mm PVC) to single needle valves. As an option I could have added a small fountain pump to feed the water rather than using a high tank and gravity feed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In all probability the under-gravel filter was removing the Tempe chloramine before it got to my fish. I didn\u2019t realize this until I got a note from BrentL about his battle with chloramine and a drip system.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"954\" height=\"604\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Cyphotilapia-frontosa-\u2013-Night-Star.jpg\" alt=\"Cyphotilapia frontosa \u2013 Night Star\" class=\"wp-image-97884\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Cyphotilapia-frontosa-\u2013-Night-Star.jpg 954w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Cyphotilapia-frontosa-\u2013-Night-Star-300x190.jpg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Cyphotilapia-frontosa-\u2013-Night-Star-150x95.jpg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Cyphotilapia-frontosa-\u2013-Night-Star-600x380.jpg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Cyphotilapia-frontosa-\u2013-Night-Star-768x486.jpg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Cyphotilapia-frontosa-\u2013-Night-Star-441x279.jpg 441w\" sizes=\"(max-width: 954px) 100vw, 954px\" \/><figcaption class=\"wp-element-caption\">Cyphotilapia frontosa \u2013 Night Star<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Chlorinated_Water\"><\/span>Chlorinated Water<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Chlorinated water can present a challenge. Fish are just very sensitive to both chlorine and chloramine. With chlorinated water it is best to set up a reservoir in a garage or patio, feed a conditioner into the reservoir every few hours to remove the chlorine or chloramine, and then feed the water to the aquarium(s) via a small low pressure pump. Alternatively set-up a large, active, mature filter on the reservoir to remove the chloramine. This advice comes after I received the following communication from BrentL<\/p>\n\n\n\n<div class=\"wp-block-group has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">I recently installed a drip water change system based on your \u201cblue print\u201d and it\u2019s been working really well. I used PEX tubing, a pressure regulator and a needle valve in the set up. For someone who knew nothing about plumbing, it feels fantastic to have accomplished this project. It is simply amazing knowing that I never need to change water again! So thank you!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One thing unexpected though was that I still need to treat the chloramine in the water. The chloramine does not oxidize fast enough to not stress my fish. My tank is about 180 gallons (681 liter), including the sump. The sump has 100+ pot scrubbers, well filtered. I started out dripping at only 0.5 gallon (1.89 liter) per hour directly into the tank. After about 3 hours, I was surprised to see that some of my fish (all rainbows tank) started to feel stressed \u2013 loss of color, surfing against the return outflow, twitching as if to shake off irritants. Those signs go away a few hours after I stopped the dripping. Then I tested the dripping a few more times over days, the results were the same \u2013 fish were stressed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">BrentL<\/p>\n<\/div>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"1015\" height=\"593\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Metriaclima-sp.-\u2013-Blue-Dolphin-Manda.jpeg\" alt=\"Maylandia sp. \u2013 Blue Dolphin Manda\" class=\"wp-image-97886\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Metriaclima-sp.-\u2013-Blue-Dolphin-Manda.jpeg 1015w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Metriaclima-sp.-\u2013-Blue-Dolphin-Manda-300x175.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Metriaclima-sp.-\u2013-Blue-Dolphin-Manda-150x88.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Metriaclima-sp.-\u2013-Blue-Dolphin-Manda-600x351.jpeg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Metriaclima-sp.-\u2013-Blue-Dolphin-Manda-768x449.jpeg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Metriaclima-sp.-\u2013-Blue-Dolphin-Manda-990x578.jpeg 990w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Metriaclima-sp.-\u2013-Blue-Dolphin-Manda-441x258.jpeg 441w\" sizes=\"(max-width: 1015px) 100vw, 1015px\" \/><figcaption class=\"wp-element-caption\">Maylandia sp. \u2013 Blue Dolphin Manda<\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-group has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">My tap water only has 0.5 ppm of chloramine. Pool test strip shows minimal (almost undetectable free or total chlorine). Interestingly, the drip water even runs through a huge whole-house Pentair water filter (20 inches tall) (50 cm) dedicated for the drip system. I initially decided to add it just for the peace of mind. The filter should be the best on the market as it boasts being one of the few to use catalytic carbon, as opposed to activated carbon which only removes chlorine. And the company targets that filter specifically for chloramine. To be fair, we all know, and the product does say, catalytic carbon can only reduce chloramine, not remove. So, there will be some residual chloramine.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">What I ended up doing is that, instead of dripping directly into the tank, I drip into a 14 gallon (52 liter) \u201creservoir\/evaporation tub\u201d which is connect to the sump tub via a \u00bd bulkhead (12 mm). Then I add a small dosing pump (Kamoer X1 Pro) to dose Prime into the reservoir every few hours, for a total of 5 ml per day (I can probably get away with less). That way, the new water will be treated in the reservoir and slowly flow to the sump. Fish no longer show any signs of stress now. They look happy!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">BrentL<\/p>\n<\/div>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"616\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Buccochromis-spectabilis-1-1024x616.jpg\" alt=\"Buccochromis spectabilis\" class=\"wp-image-97890\" style=\"width:768px;height:462px\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Buccochromis-spectabilis-1-1024x616.jpg 1024w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Buccochromis-spectabilis-1-300x180.jpg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Buccochromis-spectabilis-1-150x90.jpg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Buccochromis-spectabilis-1-600x361.jpg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Buccochromis-spectabilis-1-768x462.jpg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Buccochromis-spectabilis-1-990x595.jpg 990w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Buccochromis-spectabilis-1-441x265.jpg 441w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Buccochromis-spectabilis-1.jpg 1051w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Buccochromis spectabilis<\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-group has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">Then I went back to revisit all the Youtube videos that talked about their drip systems. I began to realize that most of them do not pre-treat their water, and they did mention their water only has chlorine. Though, they all use an under-the-sink type of activated carbon filter to remove chlorine. There were a few that had chloramine in the water, and they use either a dosing pump or a holding tank to treat the water. I wonder if that\u2019s a coincidence.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">BrentL<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Now I had some ten aquariums on a drip system in Tempe Arizona where they treated the water with chloramine. I did not add any conditioner to the system and I had no problems. But my set-up (described in detail above) had a mature deep bed under-gravel filter in an outside reservoir that was probably removing the chloramine. So I didn\u2019t see any problems. The under-gravel filters removed the chloramine before it could get to the fish.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"860\" height=\"535\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-regani.jpg\" alt=\"Maskaheros regani\" class=\"wp-image-97892\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-regani.jpg 860w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-regani-300x187.jpg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-regani-150x93.jpg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-regani-600x373.jpg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-regani-768x478.jpg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Maskaheros-regani-441x274.jpg 441w\" sizes=\"(max-width: 860px) 100vw, 860px\" \/><figcaption class=\"wp-element-caption\">Maskaheros regani<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Based on what BrentL saw, I would now recommend a preconditioning reservoir and conditioner pump to treat the water if one is on chlorinated municipal water. An alternative is a reservoir with a sizable mature filter on it to remove the chlorine or chloramine. Chloramine turns out to be rather difficult to remove rapidly with just an organic load. Chloramines require either addition of a conditioner or multiple passes through a high organic medium like a deep bed under-gravel filter.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Note if one does the drip system in copper pipe do not worry about copper poisoning in shrimp and the like. Copper poisoning is only found where acid water or slightly salty water sits in copper pipes for extended periods of time. This type of copper poisoning is very rare.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"RO_Drip_System\"><\/span><strong>RO Drip System<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The reservoir feed can be from an RO system. This is useful if one say has very alkaline water and wants a lush high tech planted tank. The RO water needs some remineralization (typically a solution of plaster of Paris and Epsom Salts). The remineralization can either be by a dosing pump or by a bypass from the tap water line to the RO unit.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"860\" height=\"508\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Melanotaenia-boesemani-\u2013-Boesemani-rainbowfish.jpeg\" alt=\"Melanotaenia boesemani \u2013 Boesemani rainbowfish\" class=\"wp-image-97894\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Melanotaenia-boesemani-\u2013-Boesemani-rainbowfish.jpeg 860w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Melanotaenia-boesemani-\u2013-Boesemani-rainbowfish-300x177.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Melanotaenia-boesemani-\u2013-Boesemani-rainbowfish-150x89.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Melanotaenia-boesemani-\u2013-Boesemani-rainbowfish-600x354.jpeg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Melanotaenia-boesemani-\u2013-Boesemani-rainbowfish-768x454.jpeg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Melanotaenia-boesemani-\u2013-Boesemani-rainbowfish-441x260.jpeg 441w\" sizes=\"(max-width: 860px) 100vw, 860px\" \/><figcaption class=\"wp-element-caption\">Melanotaenia boesemani \u2013 Boesemani rainbowfish<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"A_Drip_Set-up_that_is_Truly_Impressive\"><\/span>A Drip Set-up that is Truly Impressive<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.youtube.com\/@ronscichlids\">Ron Demers<\/a>, probably the best African Cichlid breeder there is (mouth watering gorgeous fish!), set up a new breeding facility in the Carolinas which used a continuous drip water change system. It is a huge and very impressive operation, done very well and very professionally. Ron has a YouTube video on the facility which I recommend to anyone who wants to see perfection in action.<\/p>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"video-container\"><iframe title=\"New 20g Shelldweller Breeders and Growout rack!\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/JJpZDBZIJ_o?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><figcaption class=\"wp-element-caption\">New 20g Shelldweller Breeders and Growout rack!<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Note Ron uses air operated sponge filters in his tanks for converting ammonia to nitrate. Note also Ron transitions to schedule 40 to aquarium air line tubing with just adhesive for his drip water system. But his facility is outside where a leak will not be a huge problem. I do not recommend that inside a home. And Ron uses well water so he doesn\u2019t need to worry about chlorine or chloramine.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"1024\" height=\"540\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peckoltia-sp-Pleco-L135.jpg\" alt=\"Peckoltia sp. \u2013 Pleco \u2013 L135\" class=\"wp-image-97896\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peckoltia-sp-Pleco-L135.jpg 1024w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peckoltia-sp-Pleco-L135-300x158.jpg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peckoltia-sp-Pleco-L135-150x79.jpg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peckoltia-sp-Pleco-L135-600x316.jpg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peckoltia-sp-Pleco-L135-768x405.jpg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peckoltia-sp-Pleco-L135-990x522.jpg 990w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peckoltia-sp-Pleco-L135-441x233.jpg 441w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Peckoltia sp. \u2013 Pleco \u2013 L135<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Drip_Systems_in_More_Depth\"><\/span>Drip Systems in More Depth<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Joey (the King of DIY aquariums, one of the best aquarium system designers I\u2019ve run across) also used a continuous drip water change system and loved it. So you know these systems work.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Joey set up a very inexpensive drip change system with a drip irrigation system pressure reducer and airline tubing. I cannot recommend such a system. The plastic on these types of airlines and drip irrigation lines \u201ccreep\u201d and relax and come loose in less than a year. This will give one leaks. Schedule 40 is more expensive but one soaked floor can eat up a lot of money to repair.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"1024\" height=\"570\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lethrinops-\u2013-Yellow-Collar-Harbour-Island.jpeg\" alt=\"Lethrinops \u2013 Yellow Collar Harbour Island\" class=\"wp-image-97898\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lethrinops-\u2013-Yellow-Collar-Harbour-Island.jpeg 1024w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lethrinops-\u2013-Yellow-Collar-Harbour-Island-300x167.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lethrinops-\u2013-Yellow-Collar-Harbour-Island-150x83.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lethrinops-\u2013-Yellow-Collar-Harbour-Island-600x334.jpeg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lethrinops-\u2013-Yellow-Collar-Harbour-Island-768x428.jpeg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lethrinops-\u2013-Yellow-Collar-Harbour-Island-990x551.jpeg 990w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Lethrinops-\u2013-Yellow-Collar-Harbour-Island-441x245.jpeg 441w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Lethrinops \u2013 Yellow Collar Harbour Island<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Joey\u2019s irrigation system pressure reducer drip system could easily be used with a schedule 40 PVC distribution piping to give a simple, inexpensive and dependable drip water change system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Joey did incorrectly state that large water changes are needed every two or three months with a drip water change system. He calculated that the nitrate level would continue to increase with a continuous water change system. He was simply wrong. If you simply increase the number of drops per minute one can drop the limit on the nitrate to any level one desires, the nitrate level will reach a \u201cmaximum\u201d.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To understand this intuitively think not of the water coming in but think of the water going out the overflow. If a hobbyist feeds his fish one fifth of a gram of elemental nitrogen (as protein) per day and has a continuous drip water change system, then at some point one fifth of a gram of elemental nitrogen (as nitrate) will flow out the overflow per day. At that point the nitrate level is stable and can\u2019t rise any further.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To drop the nitrate level, simply increase the number of drops per second.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"937\" height=\"506\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Hemiancistrus-sp.-\u2013-Blue-phantom-pleco-\u2013-L128.jpeg\" alt=\"Hemiancistrus sp. \u2013 Blue phantom pleco \u2013 L128\" class=\"wp-image-97900\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Hemiancistrus-sp.-\u2013-Blue-phantom-pleco-\u2013-L128.jpeg 937w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Hemiancistrus-sp.-\u2013-Blue-phantom-pleco-\u2013-L128-300x162.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Hemiancistrus-sp.-\u2013-Blue-phantom-pleco-\u2013-L128-150x81.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Hemiancistrus-sp.-\u2013-Blue-phantom-pleco-\u2013-L128-600x324.jpeg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Hemiancistrus-sp.-\u2013-Blue-phantom-pleco-\u2013-L128-768x415.jpeg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Hemiancistrus-sp.-\u2013-Blue-phantom-pleco-\u2013-L128-441x238.jpeg 441w\" sizes=\"(max-width: 937px) 100vw, 937px\" \/><figcaption class=\"wp-element-caption\">Hemiancistrus sp. \u2013 Blue phantom pleco \u2013 L128<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Another common misconception is that continuous water change systems don\u2019t flush out the water anywhere near as efficiently as a 50% water change. This simply isn\u2019t true. To illustrate, say a drip system is set up on a 100 gallon (378.5 liter) aquarium. To equal the flushing of a 50% water change about 70 gallons (265 liter) of water will need to be dripped into the 100 gallon (378.5 liter) aquarium (there\u2019s actually an app that calculates this!). This small inefficiency isn\u2019t a major problem unless your water costs a lot.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The app can be found at&nbsp;<a href=\"https:\/\/www.hamzasreef.com\/Contents\/Calculators\/EffectiveWaterChange.php\">Hamza\u2019s Reef<\/a>&nbsp;In a 100 gallon (378.5 liter) aquarium, dripping in 0.45 milliliter (nine drops) per second of water is a 50% water change in a one week time frame using 272,16 liters of water or 71.9 gallons of water (0.45x60x60x24x7)\/1,000 = 272.160ml = 272,16 liter).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Also note that one needs to cycle any aquarium water filter that is part of the system&nbsp;BEFORE&nbsp;turning on the drip system. Any water change, including drip water changes, will remove the nutrients required for the beneficial bacteria to grow.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"699\" height=\"492\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Dwarf-Blue-Rainbowfish.jpeg\" alt=\"Dwarf Blue Rainbowfish\" class=\"wp-image-97902\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Dwarf-Blue-Rainbowfish.jpeg 699w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Dwarf-Blue-Rainbowfish-300x211.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Dwarf-Blue-Rainbowfish-150x106.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Dwarf-Blue-Rainbowfish-600x422.jpeg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Dwarf-Blue-Rainbowfish-441x310.jpeg 441w\" sizes=\"(max-width: 699px) 100vw, 699px\" \/><figcaption class=\"wp-element-caption\">Dwarf Blue Rainbowfish<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Rate_of_Drip\"><\/span>Rate of Drip<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Only&nbsp;SLOWLY&nbsp;drip the water into the aquarium if you are paying for your water. You don\u2019t want a huge water bill. For instance one can aim at changing 50% of the water every 14 days. With a 100-gallon (378.5 liter) aquarium that is 5 gallons (18.93 liter) per day (a 50% change with a drip system requires 70% of the water be dripped in).<\/p>\n\n\n\n<div class=\"wp-block-group has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">Imperial:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>There are 20 drops in a milliliter<\/li>\n\n\n\n<li>There are 3785 milliliters in a gallon<\/li>\n\n\n\n<li>There are 60x60x24 = 86400 seconds in a day<\/li>\n\n\n\n<li>5 gallons x 3785 milliliters x 20 drops = 378.500 drops per day<\/li>\n\n\n\n<li>378.500 drops per day \/ 86400 seconds in a day<\/li>\n\n\n\n<li>This equals 4,3 drops per second<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">Metric :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>There are 20 drops in a milliliter<\/li>\n\n\n\n<li>There are 1000 milliliters in a liter<\/li>\n\n\n\n<li>There are 60x60x24 = 86400 seconds in a day<\/li>\n\n\n\n<li>18.93 liter x 1000 x 20 drops = 378.500 drops per day<\/li>\n\n\n\n<li>378.500 drops per day \/ 86400 seconds in a day<\/li>\n\n\n\n<li>This equals 4,3 drops per second<\/li>\n<\/ul>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The water cost is typically about $2 per month for each 100-gallon (378.5 liter) aquarium if doing 50% once every two weeks. In some areas like California, you can double or even triple that cost. Now obviously if you have a well you can ignore these numbers and go ahead and pour the water in at a heavy rate.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"841\" height=\"442\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Rocio-octofasciata-\u2013-Jack-Dempsey-electric-blue.jpeg\" alt=\"\" class=\"wp-image-97904\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Rocio-octofasciata-\u2013-Jack-Dempsey-electric-blue.jpeg 841w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Rocio-octofasciata-\u2013-Jack-Dempsey-electric-blue-300x158.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Rocio-octofasciata-\u2013-Jack-Dempsey-electric-blue-150x79.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Rocio-octofasciata-\u2013-Jack-Dempsey-electric-blue-600x315.jpeg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Rocio-octofasciata-\u2013-Jack-Dempsey-electric-blue-768x404.jpeg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Rocio-octofasciata-\u2013-Jack-Dempsey-electric-blue-441x232.jpeg 441w\" sizes=\"(max-width: 841px) 100vw, 841px\" \/><figcaption class=\"wp-element-caption\">Rocio octofasciata \u2013 Jack Dempsey electric blue<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The water can exit the aquariums to waste via several devices that keep a level of water in the aquarium and don\u2019t let it overflow. These designs can be found at the following link:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"147_Overflow_Devices\"><\/span><a href=\"https:\/\/aquainfo.nl\/en\/14-7-overflow-devices-for-aquariums\/\" data-type=\"post\" data-id=\"103417\">14.7. Overflow Devices<\/a><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Drilled aquariums with overflows also work well. If one has a sump lower than the aquarium the overflows or drilled holes to drain need to be in the sump for a drip water change system. The same overflows that work for aquariums also work exactly the same for sumps.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"902\" height=\"414\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/OB-Peacock-Blueberry.jpg\" alt=\"OB Peacock Blueberry\" class=\"wp-image-97906\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/OB-Peacock-Blueberry.jpg 902w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/OB-Peacock-Blueberry-300x138.jpg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/OB-Peacock-Blueberry-150x69.jpg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/OB-Peacock-Blueberry-600x275.jpg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/OB-Peacock-Blueberry-768x352.jpg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/OB-Peacock-Blueberry-441x202.jpg 441w\" sizes=\"(max-width: 902px) 100vw, 902px\" \/><figcaption class=\"wp-element-caption\">OB Peacock Blueberry<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Other_Water_Change_Systems_that_I_do_NOT_Recommend\"><\/span>Other Water Change Systems that I do NOT Recommend<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">There are some YouTube videos of people who put their drip systems on timers. Huh? Why? The logic fails me. You just have added a valve or a pump that can fail and leak for no discernable reason.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There are also several videos of large breeders who have \u201csemi-automated\u201d hard piped systems that did 50% water changes to 20 or more aquariums in \u201conly\u201d five to eight hours once a week or so. Some are very well done with very professional (and expensive) copper piping and valving. They all had very complex (and expensive and prone to malfunction) hot water mixing valve systems to provide water at the proper temperature for the fish. If the water isn\u2019t from a well, there needs to be some provision for removing chlorine or chloramine from the water.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"783\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Semi-automated-Water-Change-System-1024x783.jpeg\" alt=\"\u201cSemi-automated\u201d Water Change System\" class=\"wp-image-97908\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Semi-automated-Water-Change-System-1024x783.jpeg 1024w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Semi-automated-Water-Change-System-300x229.jpeg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Semi-automated-Water-Change-System-150x115.jpeg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Semi-automated-Water-Change-System-600x459.jpeg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Semi-automated-Water-Change-System-768x587.jpeg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Semi-automated-Water-Change-System-990x757.jpeg 990w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Semi-automated-Water-Change-System-441x337.jpeg 441w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Semi-automated-Water-Change-System.jpeg 1190w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u201cSemi-automated\u201d Water Change System<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">This is somewhat confusing as, with much less effort (and much less money!), they could have had a continuous drip water change system which takes no time to make the water changes. Maybe the price of water has something to do with it.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"1008\" height=\"549\" src=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Dragonblood-Albino.jpg\" alt=\"Peacock Dragonblood Albino\" class=\"wp-image-97910\" srcset=\"https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Dragonblood-Albino.jpg 1008w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Dragonblood-Albino-300x163.jpg 300w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Dragonblood-Albino-150x82.jpg 150w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Dragonblood-Albino-600x327.jpg 600w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Dragonblood-Albino-768x418.jpg 768w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Dragonblood-Albino-990x539.jpg 990w, https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Peacock-Dragonblood-Albino-441x240.jpg 441w\" sizes=\"(max-width: 1008px) 100vw, 1008px\" \/><figcaption class=\"wp-element-caption\">Peacock Dragonblood Albino<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"More_Information_on_Water_Changes\"><\/span>More Information on Water Changes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">There are some aquarium hobbyists who are interested in delving deep into the science and the calculations behind all aspects of the hobby. For those who are so inclined, the following is pertinent:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"181_Aquarium_Water_Changes\"><\/span><a href=\"https:\/\/aquainfo.nl\/en\/18-1-aquarium-water-changes\/\" data-type=\"post\" data-id=\"96037\">18.1. Aquarium Water Changes<\/a><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1811_Water_Changes_in_Depth\"><\/span><a href=\"https:\/\/aquainfo.nl\/en\/18-1-1-water-changes-in-depth\/\" data-type=\"post\" data-id=\"98100\">18.1.1. Water Changes in Depth<\/a><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1812_Water_Change_Math\"><\/span><a href=\"https:\/\/aquainfo.nl\/en\/18-1-2-aquarium-water-change-math\/\" data-type=\"post\" data-id=\"98132\">18.1.2. Water Change Math<\/a><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1813_Water_for_Water_Change\"><\/span><a href=\"https:\/\/aquainfo.nl\/en\/18-1-3-water-change-water\/\" data-type=\"post\" data-id=\"98146\">18.1.3. Water for Water Change<\/a><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-startpagina-aquariumscience\"><a href=\"\/?cat_ID=55102\" data-type=\"link\" data-id=\"https:\/\/aquainfo.nl\/en\/category\/aquariumscience-en\/\">Startpage Aquariumscience<\/a><\/h2>\n\n\n<nav style=\"color: #005d94;background-color: #f4f9fd\" class=\"has-text-color has-background has-medium-font-size is-vertical wp-block-navigation is-layout-flex wp-container-core-navigation-is-layout-8cdb3485 wp-block-navigation-is-layout-flex\" aria-label=\"AquariumScience - Engels\"><ul style=\"color: #005d94;background-color: #f4f9fd\" class=\"wp-block-navigation__container has-text-color has-background has-medium-font-size is-vertical wp-block-navigation\"><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/1-aquarium-basics\/\"><span class=\"wp-block-navigation-item__label\">1. Aquarium Basics<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"1. Aquarium Basics submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/1-2-falsehoods-and-myths\/\"><span class=\"wp-block-navigation-item__label\">1.2. Falsehoods and Myths<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/1-3-false-marketing-claims\/\"><span class=\"wp-block-navigation-item__label\">1.3. False marketing claims<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/1-4-sources-of-data\/\"><span class=\"wp-block-navigation-item__label\">1.4. Sources of data<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"1.4. Sources of data submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/1-4-1-facebook-fake-accounts\/\"><span class=\"wp-block-navigation-item__label\">1.4.1. Facebook Fake Accounts<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/1-5-aquarium-options\/\"><span class=\"wp-block-navigation-item__label\">1.5. Aquarium options<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/1-6-aquarium-fast-fish-deaths\/\"><span class=\"wp-block-navigation-item__label\">1.6. Aquarium Fast Fish Deaths<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/1-7-aquarium-slow-fish-deaths\/\"><span class=\"wp-block-navigation-item__label\">1.7. Aquarium Slow Fish Deaths<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/2-aquarium-cycling\/\"><span class=\"wp-block-navigation-item__label\">2. Aquarium Cycling<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"2. Aquarium Cycling submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-1-fish-less-cycling\/\"><span class=\"wp-block-navigation-item__label\">2.1. Fish less cycling<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-2-many-ways-to-cycle\/\"><span class=\"wp-block-navigation-item__label\">2.2. Many Ways to Cycle<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-3-how-i-cycle-an-aquarium\/\"><span class=\"wp-block-navigation-item__label\">2.3. How I Cycle an aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-4-cycling-an-aquarium-with-ammonia\/\"><span class=\"wp-block-navigation-item__label\">2.4. Cycling an Aquarium with Ammonia<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/2-5-aquarium-fish-in-cycling\/\"><span class=\"wp-block-navigation-item__label\">2.5. Aquarium Fish-in Cycling<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"2.5. Aquarium Fish-in Cycling submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-5-2-rapid-fish-in-cycling\/\"><span class=\"wp-block-navigation-item__label\">2.5.2. Rapid Fish-in Cycling<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-6-not-cycling-an-aquarium-at-all\/\"><span class=\"wp-block-navigation-item__label\">2.6. Not Cycling an Aquarium at All<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-7-new-tank-syndrome\/\"><span class=\"wp-block-navigation-item__label\">2.7. New Tank-syndrome<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/2-8-bacteria-in-a-bottle\/\"><span class=\"wp-block-navigation-item__label\">2.8. Bacteria-in-a-bottle<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"2.8. Bacteria-in-a-bottle submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-8-1-bacteria-in-a-bottle-in-depth\/\"><span class=\"wp-block-navigation-item__label\">2.8.1. Bacteria in a Bottle in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-8-2-sludge-removing-bacteria-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">2.8.2. Sludge Removing Bacteria in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-9-instant-cycling-chemicals-for-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">2.9. Instant Cycling Chemicals for the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-10-nitrogen-cycle\/\"><span class=\"wp-block-navigation-item__label\">2.10. Nitrogen Cycle<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-11-inoculate-for-cycling\/\"><span class=\"wp-block-navigation-item__label\">2.11. Inoculate for Cycling<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-12-beneficial-bacteria\/\"><span class=\"wp-block-navigation-item__label\">2.12. Beneficial Bacteria<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-13-cycling-test\/\"><span class=\"wp-block-navigation-item__label\">2.13. Cycling Test<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-14-the-mature-aquarium\/\"><span class=\"wp-block-navigation-item__label\">2.14. The Mature Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/2-15-cycling-a-planted-aquarium\/\"><span class=\"wp-block-navigation-item__label\">2.15. Cycling a Planted Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/3-fish-food\/\"><span class=\"wp-block-navigation-item__label\">3. Fish Food<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"3. Fish Food submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/3-1-insignificance-of-food\/\"><span class=\"wp-block-navigation-item__label\">3.1. Insignificance of Food<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/3-2-fish-diet-specializations\/\"><span class=\"wp-block-navigation-item__label\">3.2. Fish Diet Specializations<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/3-3-amount-of-fish-food\/\"><span class=\"wp-block-navigation-item__label\">3.3. Amount of Fish Food<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/3-4-gel-fish-food\/\"><span class=\"wp-block-navigation-item__label\">3.4. Gel Fish Food<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/3-5-breaking-up-fish-food-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">3.5. Breaking Up Fish Food in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/3-6-dry-fish-food\/\"><span class=\"wp-block-navigation-item__label\">3.6. Dry Fish Food<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/3-7-banned-fish-food\/\"><span class=\"wp-block-navigation-item__label\">3.7. Banned Fish Food<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/3-8-fish-food-and-malawi-bloat\/\"><span class=\"wp-block-navigation-item__label\">3.8. Fish Food and Malawi Bloat<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/3-9-fish-food-and-gunk\/\"><span class=\"wp-block-navigation-item__label\">3.9. Fish Food and Gunk<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/4-temperature-ph-kh-and-gh\/\"><span class=\"wp-block-navigation-item__label\">4. Temperature, pH, KH and GH<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"4. Temperature, pH, KH and GH submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-1-importance-of-water-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">4.1. Importance of Water in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-2-aquarium-temperatures\/\"><span class=\"wp-block-navigation-item__label\">4.2. Aquarium temperatures<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-3-free-floating-bacteria-in-aquariums\/\"><span class=\"wp-block-navigation-item__label\">4.3. Free Floating Bacteria in Aquariums<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/4-4-aquarium-ph\/\"><span class=\"wp-block-navigation-item__label\">4.4. Aquarium pH<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"4.4. Aquarium pH submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-4-1-aquarium-ph-is-not-important\/\"><span class=\"wp-block-navigation-item__label\">4.4.1. Aquarium pH is Not Important<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-4-2-buffering-aquarium-water\/\"><span class=\"wp-block-navigation-item__label\">4.4.2. Buffering Aquarium Water<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-4-3-carbon-dioxide-and-ph-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">4.4.3. \u00a0Carbon Dioxide and pH in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-4-4-dropping-ph-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">4.4.4. Dropping pH in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-4-5-raising-ph-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">4.4.5. Raising pH in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/4-5-water-hardness-gh-and-kh-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">4.5. Water Hardness, GH and KH in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"4.5. Water Hardness, GH and KH in the Aquarium submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-5-1-general-hardness\/\"><span class=\"wp-block-navigation-item__label\">4.5.1. General Hardness<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/4-5-2-carbonate-hardness-kh-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">4.5.2. Carbonate Hardness, KH in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"4.5.2. Carbonate Hardness, KH in the Aquarium submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-5-2-1-kh-and-cycling-in-an-aquarium\/\"><span class=\"wp-block-navigation-item__label\">4.5.2.1. KH and Cycling in an Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/4-6-salts-in-the-water-of-an-aquarium\/\"><span class=\"wp-block-navigation-item__label\">4.6. Salts in the Water of an Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"4.6. Salts in the Water of an Aquarium submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-6-1-trace-additives-for-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">4.6.1. Trace Additives for the aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-7-fish-tolerance-to-ph\/\"><span class=\"wp-block-navigation-item__label\">4.7. Fish Tolerance to pH<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/4-8-stability-isnt-important\/\"><span class=\"wp-block-navigation-item__label\">4.8. \u201cStability\u201d isn\u2019t Important<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"4.8. \u201cStability\u201d isn\u2019t Important submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-8-1-rapid-thermal-and-ph-shifts-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">4.8.1. Rapid Thermal and pH Shifts in the aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-9-un-bagging-fish-for-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">4.9. Un-bagging Fish for the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-10-orp-or-redox-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">4.10. ORP or Redox in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/4-11-tank-syndromes\/\"><span class=\"wp-block-navigation-item__label\">4.11. Tank Syndromes<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/5-ammonia-nitrite-nitrate-and-chlorine\/\"><span class=\"wp-block-navigation-item__label\">5. Ammonia, Nitrite, Nitrate and Chlorine<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"5. Ammonia, Nitrite, Nitrate and Chlorine submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/5-2-safe-ammonia-levels\/\"><span class=\"wp-block-navigation-item__label\">5.2. Safe Ammonia Levels<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"5.2. Safe Ammonia Levels submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/5-2-1-ammonia-in-the-aquarium-in-depth\/\"><span class=\"wp-block-navigation-item__label\">5.2.1. Ammonia in the Aquarium in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/5-2-3-high-ammonia-spikes-in-an-aquarium\/\"><span class=\"wp-block-navigation-item__label\">5.2.3. High Ammonia Spikes in an Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/5-3-safe-nitrite-levels\/\"><span class=\"wp-block-navigation-item__label\">5.3. Safe Nitrite Levels<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"5.3. Safe Nitrite Levels submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/5-3-2-safe-nitrite-levels-in-the-aquarium-in-more-depth\/\"><span class=\"wp-block-navigation-item__label\">5.3.2. Safe Nitrite Levels in the Aquarium in More Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/5-4-safe-nitrate-levels\/\"><span class=\"wp-block-navigation-item__label\">5.4. Safe Nitrate Levels<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"5.4. Safe Nitrate Levels submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/5-4-1-nitrate-in-depth\/\"><span class=\"wp-block-navigation-item__label\">5.4.1. Nitrate in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/5-5-chlorine-and-chloramine\/\"><span class=\"wp-block-navigation-item__label\">5.5. Chlorine and Chloramine<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"5.5. Chlorine and Chloramine submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/5-5-1-chlorination-in-the-aquarium-in-depth\/\"><span class=\"wp-block-navigation-item__label\">5.5.1. Chlorination in the Aquarium in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/5-5-2-chloramines-in-aquarium-water\/\"><span class=\"wp-block-navigation-item__label\">5.5.2. Chloramines in Aquarium Water<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"5.5.2. Chloramines in Aquarium Water submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/5-5-2-1-ammonia-in-chloramine-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">5.5.2.1. Ammonia in Chloramine in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/5-5-3-aquarium-water-conditioners\/\"><span class=\"wp-block-navigation-item__label\">5.5.3. Aquarium Water Conditioners<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"5.5.3. Aquarium Water Conditioners submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/5-5-3-1-ammonia-detoxifying-chemicals-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">5.5.3.1. Ammonia Detoxifying Chemicals in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/5-5-3-2-seachem-prime-and-seachem-safe\/\"><span class=\"wp-block-navigation-item__label\">5.5.3.2. Seachem Prime and Seachem Safe<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/5-5-3-3-conditioner-chemistry\/\"><span class=\"wp-block-navigation-item__label\">5.5.3.3. Conditioner Chemistry<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/5-5-3-4-cost-of-conditioners\/\"><span class=\"wp-block-navigation-item__label\">5.5.3.4. Cost of Conditioners<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/5-5-3-5-conditioner-testing\/\"><span class=\"wp-block-navigation-item__label\">5.5.3.5. Conditioner Testing<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/5-5-3-6-review-of-water-conditioners-for-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">5.5.3.6. Review of Water Conditioners for the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/5-5-4-stress-coat-products\/\"><span class=\"wp-block-navigation-item__label\">5.5.4. Stress Coat Products<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/6-filtration\/\"><span class=\"wp-block-navigation-item__label\">6. Filtration<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"6. Filtration submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/6-1-mechanical-filtration\/\"><span class=\"wp-block-navigation-item__label\">6.1. Mechanical Filtration<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"6.1. Mechanical Filtration submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-1-1-cleaned-mechanical-filtration\/\"><span class=\"wp-block-navigation-item__label\">6.1.1. Cleaned Mechanical Filtration<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-1-2-uncleaned-mechanical-filtration\/\"><span class=\"wp-block-navigation-item__label\">6.1.2. Uncleaned Mechanical Filtration<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/6-2-biofiltration\/\"><span class=\"wp-block-navigation-item__label\">6.2. Biofiltration<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"6.2. Biofiltration submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-2-1-detritus-explained\/\"><span class=\"wp-block-navigation-item__label\">6.2.1. Detritus Explained<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-2-2-brown-gunk\/\"><span class=\"wp-block-navigation-item__label\">6.2.2. Brown Gunk<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-2-3-cloudy-water\/\"><span class=\"wp-block-navigation-item__label\">6.2.3. Cloudy Water<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-3-over-filtration-in-an-aquarium\/\"><span class=\"wp-block-navigation-item__label\">6.3. Over-filtration in an Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/6-4-crystal-clear-water\/\"><span class=\"wp-block-navigation-item__label\">6.4. Crystal-Clear Water<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"6.4. Crystal-Clear Water submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-4-1-crystal-clear-water-in-depth\/\"><span class=\"wp-block-navigation-item__label\">6.4.1. Crystal-Clear Water in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-4-2-polishing-filtration-in-an-aquarium-filter\/\"><span class=\"wp-block-navigation-item__label\">6.4.2. Polishing Filtration in an Aquarium Filter<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/6-5-water-flow-rate-in-aquarium-filters\/\"><span class=\"wp-block-navigation-item__label\">6.5. Water Flow Rate in Aquarium Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"6.5. Water Flow Rate in Aquarium Filters submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-5-1-function-of-flow-in-an-aquarium\/\"><span class=\"wp-block-navigation-item__label\">6.5.1. Function of Flow in an Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-5-2-substrate-as-a-filter\/\"><span class=\"wp-block-navigation-item__label\">6.5.2. Substrate as a Filter<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-6-aquaponic-filtration\/\"><span class=\"wp-block-navigation-item__label\">6.6. Aquaponic Filtration<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-7-nitrate-factory\/\"><span class=\"wp-block-navigation-item__label\">6.7. Nitrate Factory<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/6-8-thorough-cleaning-a-filter\/\"><span class=\"wp-block-navigation-item__label\">6.8. Thorough Cleaning a Filter<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"6.8. Thorough Cleaning a Filter submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-8-1-filter-cleaning-tests\/\"><span class=\"wp-block-navigation-item__label\">6.8.1. Filter Cleaning Tests<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/6-9-tap-water-rinsing\/\"><span class=\"wp-block-navigation-item__label\">6.9. Tap Water Rinsing<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/7-filter-media\/\"><span class=\"wp-block-navigation-item__label\">7. Filter Media<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"7. Filter Media submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/7-1-review-of-aquarium-filter-media\/\"><span class=\"wp-block-navigation-item__label\">7.1. Review of Aquarium Filter Media<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"7.1. Review of Aquarium Filter Media submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-1-1-cost-of-filter-media\/\"><span class=\"wp-block-navigation-item__label\">7.1.1. Cost of Filter Media<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-1-2-the-function-of-aquarium-filter-media\/\"><span class=\"wp-block-navigation-item__label\">7.1.2. The Function of Aquarium Filter Media<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/7-1-3-aquarium-filter-media-tests\/\"><span class=\"wp-block-navigation-item__label\">7.1.3. Aquarium Filter Media Tests<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"7.1.3. Aquarium Filter Media Tests submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-1-3-1-ammonia-oxidizing-test\/\"><span class=\"wp-block-navigation-item__label\">7.1.3.1. Ammonia Oxidizing Test<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-1-3-2-water-clarity-test-of-aquarium-filter-media\/\"><span class=\"wp-block-navigation-item__label\">7.1.3.2. Water Clarity Test of Aquarium Filter Media<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/7-2-individual-media-list\/\"><span class=\"wp-block-navigation-item__label\">7.2. Individual Media List<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"7.2. Individual Media List submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-1-polyester-floss\/\"><span class=\"wp-block-navigation-item__label\">7.2.1. Polyester Floss<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-2-foam-media\/\"><span class=\"wp-block-navigation-item__label\">7.2.2. Foam Media<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-3-k1-media\/\"><span class=\"wp-block-navigation-item__label\">7.2.3. K1 Media<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-4-pumice-perlite\/\"><span class=\"wp-block-navigation-item__label\">7.2.4. Pumice Perlite<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-5-aquarium-gravel\/\"><span class=\"wp-block-navigation-item__label\">7.2.5. Aquarium Gravel<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-6-pp-eva-pads-for-aquarium-filters\/\"><span class=\"wp-block-navigation-item__label\">7.2.6. PP EVA Pads for Aquarium Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-7-bio-balls-aquarium-filter-media\/\"><span class=\"wp-block-navigation-item__label\">7.2.7. Bio Balls Aquarium Filter Media<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-8-pot-scrubbers-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">7.2.8. Pot Scrubbers in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-9-lava-rock-for-aquarium-filter-media\/\"><span class=\"wp-block-navigation-item__label\">7.2.9. Lava Rock for Aquarium Filter Media<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-10-growstone\/\"><span class=\"wp-block-navigation-item__label\">7.2.10. Growstone<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-11-ceramic-media-in-aquarium-filters\/\"><span class=\"wp-block-navigation-item__label\">7.2.11. Ceramic Media in Aquarium Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-12-seachem-matrix-filter-media\/\"><span class=\"wp-block-navigation-item__label\">7.2.12. Seachem Matrix filter media<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-13-clay-balls\/\"><span class=\"wp-block-navigation-item__label\">7.2.13. Clay Balls<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-2-14-biohome-filter-media\/\"><span class=\"wp-block-navigation-item__label\">7.2.14. BioHome Filter Media<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-3-calculating-filter-media-volume-requirements\/\"><span class=\"wp-block-navigation-item__label\">7.3. Calculating Filter Media Volume Requirements<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/7-4-chemical-filtration-media-in-the-aquarium-filter\/\"><span class=\"wp-block-navigation-item__label\">7.4. Chemical Filtration Media in the Aquarium Filter<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"7.4. Chemical Filtration Media in the Aquarium Filter submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-4-2-activated-carbon-in-an-aquarium-filter\/\"><span class=\"wp-block-navigation-item__label\">7.4.2. Activated Carbon in an Aquarium Filter<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-4-3-ion-exchange-resins-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">7.4.3. Ion-Exchange Resins in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-4-4-zeolite-ammonia-removing-granules-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">7.4.4. Zeolite Ammonia Removing Granules in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-4-5-phosphate-removing-granules-for-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">7.4.5. Phosphate Removing Granules for the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-4-6-purigen-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">7.4.6. Purigen in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-4-7-poly-filter-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">7.4.7. Poly-Filter in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-5-denitrifying-media-biohome-and-denitrate-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">7.5. Denitrifying Media, Biohome and De*Nitrate in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/7-6-the-surface-area-requirements-for-aquarium-filter-media\/\"><span class=\"wp-block-navigation-item__label\">7.6. The Surface Area Requirements for Aquarium Filter Media<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/8-review-of-aquarium-filters\/\"><span class=\"wp-block-navigation-item__label\">8. Review of Aquarium Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"8. Review of Aquarium Filters submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/8-1-review-of-aquarium-filters-in-depth\/\"><span class=\"wp-block-navigation-item__label\">8.1. Review of Aquarium Filters in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"8.1. Review of Aquarium Filters in Depth submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-1-1-aquarium-filter-test\/\"><span class=\"wp-block-navigation-item__label\">8.1.1. Aquarium Filter Test<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-2-hang-on-back-aquarium-filters\/\"><span class=\"wp-block-navigation-item__label\">8.2. Hang On Back Aquarium Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/8-3-aquarium-canister-filters\/\"><span class=\"wp-block-navigation-item__label\">8.3. Aquarium Canister Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"8.3. Aquarium Canister Filters submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-3-1-aquarium-canister-filters-in-depth\/\"><span class=\"wp-block-navigation-item__label\">8.3.1. Aquarium Canister Filters in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-3-2-do-it-yourself-canister-filters\/\"><span class=\"wp-block-navigation-item__label\">8.3.2. Do-it-yourself Canister Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-3-3-fx-series-canister-filters\/\"><span class=\"wp-block-navigation-item__label\">8.3.3. FX Series Canister Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-4-aquarium-sponge-filters\/\"><span class=\"wp-block-navigation-item__label\">8.4. Aquarium Sponge Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/8-5-under-gravel-filters\/\"><span class=\"wp-block-navigation-item__label\">8.5. Under Gravel Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"8.5. Under Gravel Filters submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-5-1-under-gravel-aquarium-filters-in-depth\/\"><span class=\"wp-block-navigation-item__label\">8.5.1. Under-Gravel Aquarium Filters in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-5-2-diy-undergravel-filter\/\"><span class=\"wp-block-navigation-item__label\">8.5.2. DIY Undergravel Filter<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/8-6-sump-aquarium-filters\/\"><span class=\"wp-block-navigation-item__label\">8.6. Sump Aquarium Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"8.6. Sump Aquarium Filters submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-6-1-sump-aquarium-filters-in-depth\/\"><span class=\"wp-block-navigation-item__label\">8.6.1. Sump Aquarium Filters in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-6-2-designing-an-aquarium-static-sump-filter\/\"><span class=\"wp-block-navigation-item__label\">8.6.2. Designing an Aquarium Static Sump Filter<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-6-3-trickle-aquarium-filters\/\"><span class=\"wp-block-navigation-item__label\">8.6.3. Trickle Aquarium Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-6-4-wet-dry-aquarium-filters\/\"><span class=\"wp-block-navigation-item__label\">8.6.4. Wet-Dry Aquarium Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-6-5-fluidized-bed-sump-filters-for-aquariums\/\"><span class=\"wp-block-navigation-item__label\">8.6.5. Fluidized Bed Sump Filters for Aquariums<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-6-6-do-it-yourself-sump-filters-for-aquariums\/\"><span class=\"wp-block-navigation-item__label\">8.6.6. Do-it-yourself Sump Filters for Aquariums<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-6-7-foam-sump\/\"><span class=\"wp-block-navigation-item__label\">8.6.7. Foam Sump<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/8-7-other-filters\/\"><span class=\"wp-block-navigation-item__label\">8.7. Other Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"8.7. Other Filters submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-7-1-sand-filters\/\"><span class=\"wp-block-navigation-item__label\">8.7.1. Sand Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-7-2-high-performance-filters-for-aquariums\/\"><span class=\"wp-block-navigation-item__label\">8.7.2. \u201cHigh Performance\u201d Filters for Aquariums<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-7-3-hamburg-matten-aquarium-filter\/\"><span class=\"wp-block-navigation-item__label\">8.7.3. Hamburg Matten Aquarium Filter<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-7-4-aquarium-diatomaceous-earth-filters\/\"><span class=\"wp-block-navigation-item__label\">8.7.4. Aquarium Diatomaceous Earth Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-7-5-do-it-yourself-aquarium-bottle-filters\/\"><span class=\"wp-block-navigation-item__label\">8.7.5. Do it yourself Aquarium Bottle Filters.<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-7-6-small-filters-for-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">8.7.6. Small Filters for the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-7-7-bottom-of-the-tank-matten\/\"><span class=\"wp-block-navigation-item__label\">8.7.7. Bottom of the Tank Matten<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-7-8-small-diy-aquarium-filters\/\"><span class=\"wp-block-navigation-item__label\">8.7.8. Small DIY Aquarium Filters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-8-filter-and-media-design-for-aquariums\/\"><span class=\"wp-block-navigation-item__label\">8.8. Filter and Media Design for Aquariums<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/8-9-anaerobic-or-anoxic-reactors-as-an-aquarium-filter\/\"><span class=\"wp-block-navigation-item__label\">8.9. Anaerobic or Anoxic Reactors as an Aquarium Filter<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"8.9. Anaerobic or Anoxic Reactors as an Aquarium Filter submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-9-1-biocenosis-reactor\/\"><span class=\"wp-block-navigation-item__label\">8.9.1. Biocenosis Reactor<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-9-2-a-feasible-reactor-for-doing-anoxic-aquarium-filtration\/\"><span class=\"wp-block-navigation-item__label\">8.9.2. A Feasible Reactor for doing Anoxic Aquarium Filtration<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/8-9-3-assimilatory-denitrification\/\"><span class=\"wp-block-navigation-item__label\">8.9.3. Assimilatory Denitrification<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/9-aeration-of-an-aquarium\/\"><span class=\"wp-block-navigation-item__label\">9. Aeration of an Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"9. Aeration of an Aquarium submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/9-1-aeration-in-depth\/\"><span class=\"wp-block-navigation-item__label\">9.1. Aeration in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/9-2-turbulence-and-aeration-in-an-aquarium\/\"><span class=\"wp-block-navigation-item__label\">9.2. Turbulence and Aeration in an Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/9-3-airstone-aeration-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">9.3. Airstone Aeration in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"9.3. Airstone Aeration in the Aquarium submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/9-3-2-cleaning-aquarium-air-stones\/\"><span class=\"wp-block-navigation-item__label\">9.3.2. Cleaning Aquarium Air Stones<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/9-4-skimmers-and-spray-bars-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">9.4. Skimmers and Spray Bars in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/9-5-aquarium-aeration-and-temperature\/\"><span class=\"wp-block-navigation-item__label\">9.5. Aquarium Aeration and Temperature<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/10-diseases\/\"><span class=\"wp-block-navigation-item__label\">10. Diseases<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"10. Diseases submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-1-aquarium-diseases-in-general\/\"><span class=\"wp-block-navigation-item__label\">10.1. Aquarium Diseases in General<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/10-2-skin-protozoans\/\"><span class=\"wp-block-navigation-item__label\">10.2. Skin Protozoans<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"10.2. Skin Protozoans submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/10-2-2-ich-in-far-more-depth\/\"><span class=\"wp-block-navigation-item__label\">10.2.2. Ich in far more depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"10.2.2. Ich in far more depth submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-2-2-1-ich-in-depth\/\"><span class=\"wp-block-navigation-item__label\">10.2.2.1. Ich in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-2-2-2-ich-immunity\/\"><span class=\"wp-block-navigation-item__label\">10.2.2.2. Ich Immunity<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-2-2-3-ich-medication\/\"><span class=\"wp-block-navigation-item__label\">10.2.2.3. Ich Medication<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-2-2-4-ich-medications-in-more-depth\/\"><span class=\"wp-block-navigation-item__label\">10.2.2.4. Ich Medications in More Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-2-2-5-ineffective-ich-medications\/\"><span class=\"wp-block-navigation-item__label\">10.2.2.5. Ineffective Ich Medications<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-2-2-6-filtration-of-ich\/\"><span class=\"wp-block-navigation-item__label\">10.2.2.6. Filtration of Ich<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-2-2-7-ich-and-heat\/\"><span class=\"wp-block-navigation-item__label\">10.2.2.7. Ich and Heat<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-2-3-velvet-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">10.2.3. Velvet in Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-2-4-epistylis-on-a-fish\/\"><span class=\"wp-block-navigation-item__label\">10.2.4. Epistylis on a Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-2-5-chilodonella-and-costia\/\"><span class=\"wp-block-navigation-item__label\">10.2.5. Chilodonella and Costia<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-2-6-tetrahymena\/\"><span class=\"wp-block-navigation-item__label\">10.2.6. Tetrahymena<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-2-7-cryptobia-in-fish\/\"><span class=\"wp-block-navigation-item__label\">10.2.7. Cryptobia in Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/10-3-bacterial-infections-in-fish\/\"><span class=\"wp-block-navigation-item__label\">10.3. Bacterial Infections in Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"10.3. Bacterial Infections in Fish submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-3-1-skin-ulcers-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">10.3.1. Skin Ulcers in Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-3-2-mouth-rot-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">10.3.2. Mouth Rot in Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-3-3-duck-lips-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">10.3.3. Duck Lips in Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-3-4-fin-rot-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">10.3.4. Fin Rot in Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-3-5-saddleback-in-fish\/\"><span class=\"wp-block-navigation-item__label\">10.3.5. Saddleback in Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-3-6-red-blotches-or-septicemia-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">10.3.6. Red Blotches or Septicemia in Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-3-7-white-eyes\/\"><span class=\"wp-block-navigation-item__label\">10.3.7. White Eyes<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-3-8-popeye\/\"><span class=\"wp-block-navigation-item__label\">10.3.8. Popeye<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-3-9-red-gills\/\"><span class=\"wp-block-navigation-item__label\">10.3.9. Red Gills<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-3-10-red-mouth-in-goldfish\/\"><span class=\"wp-block-navigation-item__label\">10.3.10. Red Mouth in Goldfish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-3-11-treating-bacterial-diseases-in-fish\/\"><span class=\"wp-block-navigation-item__label\">10.3.11. Treating Bacterial Diseases in Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/10-4-fish-tuberculosis\/\"><span class=\"wp-block-navigation-item__label\">10.4. Fish Tuberculosis<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"10.4. Fish Tuberculosis submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-4-1-fish-tb-in-depth\/\"><span class=\"wp-block-navigation-item__label\">10.4.1. Fish TB in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-5-hexamita-in-fish\/\"><span class=\"wp-block-navigation-item__label\">10.5. Hexamita in fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-6-flukes\/\"><span class=\"wp-block-navigation-item__label\">10.6. Flukes<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-7-fish-saprolegnia-or-fish-fungus\/\"><span class=\"wp-block-navigation-item__label\">10.7. Fish Saprolegnia or \u201cFish Fungus\u201d<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-8-lymphocystis-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">10.8. Lymphocystis in Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-9-anchor-worms\/\"><span class=\"wp-block-navigation-item__label\">10.9. Anchor Worms<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-10-black-spots-on-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">10.10. Black Spots on Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-11-tapeworms-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">10.11. Tapeworms in Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/10-12-nematodes-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">10.12. Nematodes in Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"10.12. Nematodes in Aquarium Fish submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-12-1-camallanus-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">10.12.1. Camallanus In Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-12-2-capillaria\/\"><span class=\"wp-block-navigation-item__label\">10.12.2. Capillaria<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-13-pests-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">10.13. Pests in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-14-fish-lice-on-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">10.14. Fish Lice on Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-15-dwarf-gourami-disease\/\"><span class=\"wp-block-navigation-item__label\">10.15. Dwarf Gourami Disease<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/10-16-graphite-disease-in-bettas\/\"><span class=\"wp-block-navigation-item__label\">10.16. Graphite Disease in Bettas<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/11-fish-disease-symptoms\/\"><span class=\"wp-block-navigation-item__label\">11. Fish Disease Symptoms<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"11. Fish Disease Symptoms submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/11-1-hole-in-the-head-syndrome\/\"><span class=\"wp-block-navigation-item__label\">11.1. Hole in the Head Syndrome<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"11.1. Hole in the Head Syndrome submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-1-1-hexamita-and-hith\/\"><span class=\"wp-block-navigation-item__label\">11.1.1. Hexamita and HITH<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-1-2-spots-on-the-head-of-fish\/\"><span class=\"wp-block-navigation-item__label\">11.1.2. Spots on the Head of Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-2-white-poop-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">11.2. White Poop in Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-3-malawi-bloat\/\"><span class=\"wp-block-navigation-item__label\">11.3. Malawi Bloat<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-4-dropsy\/\"><span class=\"wp-block-navigation-item__label\">11.4. Dropsy<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-5-hollow-belly\/\"><span class=\"wp-block-navigation-item__label\">11.5. Hollow Belly<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-6-swim-bladder-syndrome-in-tropical-fish\/\"><span class=\"wp-block-navigation-item__label\">11.6. Swim Bladder Syndrome in Tropical Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-7-shimmying-in-tropical-fish\/\"><span class=\"wp-block-navigation-item__label\">11.7 Shimmying in Tropical Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-8-twirling-in-tropical-fish\/\"><span class=\"wp-block-navigation-item__label\">11.8. Twirling in Tropical Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-9-spinal-deformities-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">11.9. Spinal Deformities in Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-10-white-skin-blotches-on-a-fish\/\"><span class=\"wp-block-navigation-item__label\">11.10. White Skin Blotches on a fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-11-red-skin-blotches\/\"><span class=\"wp-block-navigation-item__label\">11.11. Red Skin Blotches<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-12-neon-disease\/\"><span class=\"wp-block-navigation-item__label\">11.12. Neon Disease<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-13-slime-coat-syndrome-on-a-fish\/\"><span class=\"wp-block-navigation-item__label\">11.13. Slime Coat Syndrome on a Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-14-scaly-skin-on-a-fish\/\"><span class=\"wp-block-navigation-item__label\">11.14. Scaly Skin on a Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-15-fish-not-eating\/\"><span class=\"wp-block-navigation-item__label\">11.15. Fish not Eating<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-16-aggression-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">11.16. Aggression in Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-17-black-death-in-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">11.17. Black Death in Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-18-black-head-syndrome\/\"><span class=\"wp-block-navigation-item__label\">11.18. Black Head Syndrome<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/11-19-gas-bubble-disease\/\"><span class=\"wp-block-navigation-item__label\">11.19. Gas Bubble Disease<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/12-treatment-of-fish-disease-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">12. Treatment of Fish Disease in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"12. Treatment of Fish Disease in the Aquarium submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-1-basics-of-treatment-of-fish-diseases\/\"><span class=\"wp-block-navigation-item__label\">12.1. Basics of Treatment of Fish Diseases<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-2-treatments-summary-for-fish-diseases\/\"><span class=\"wp-block-navigation-item__label\">12.2. Treatments Summary for Fish Diseases<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-3-quarantine-tanks\/\"><span class=\"wp-block-navigation-item__label\">12.3. Quarantine Tanks<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/12-4-ineffective-medicines-for-fish-diseases\/\"><span class=\"wp-block-navigation-item__label\">12.4. Ineffective Medicines for Fish Diseases<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"12.4. Ineffective Medicines for Fish Diseases submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-4-1-natural-aquarium-medications\/\"><span class=\"wp-block-navigation-item__label\">12.4.1. \u201cNatural\u201d Aquarium Medications<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-4-2-salt-for-treating-fish-disease\/\"><span class=\"wp-block-navigation-item__label\">12.4.2. Salt for Treating Fish Disease<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-4-3-aquarium-dyes\/\"><span class=\"wp-block-navigation-item__label\">12.4.3. Aquarium Dyes<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-4-5-antiseptics-for-treating-fish-disease\/\"><span class=\"wp-block-navigation-item__label\">12.4.5. Antiseptics for Treating Fish Disease<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-4-6-furan-and-sulfa-drugs-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">12.4.6. Furan and Sulfa Drugs in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-4-7-quinine-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">12.4.7. Quinine in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-5-fish-dont-drink\/\"><span class=\"wp-block-navigation-item__label\">12.5. Fish Don\u2019t Drink<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-6-sterilization-of-aquariums\/\"><span class=\"wp-block-navigation-item__label\">12.6. Sterilization of Aquariums<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-7-making-medicated-fish-food-for-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">12.7. Making Medicated Fish Food for the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-8-euthanizing-a-fish\/\"><span class=\"wp-block-navigation-item__label\">12.8. Euthanizing a Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-9-avoiding-diseases-in-fish\/\"><span class=\"wp-block-navigation-item__label\">12.9. Avoiding Diseases in Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/12-10-the-shotgun-approach\/\"><span class=\"wp-block-navigation-item__label\">12.10. The Shotgun Approach<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/13-stocking\/\"><span class=\"wp-block-navigation-item__label\">13. Stocking<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"13. Stocking submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/13-1-stocking-opinions\/\"><span class=\"wp-block-navigation-item__label\">13.1. Stocking Opinions<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/13-2-calculating-stocking-ratio\/\"><span class=\"wp-block-navigation-item__label\">13.2. Calculating Stocking Ratio<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/13-3-lifespan-of-an-aquarium-fish\/\"><span class=\"wp-block-navigation-item__label\">13.3. Lifespan of an Aquarium Fish<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/14-equipment-for-the-tropical-aquarium\/\"><span class=\"wp-block-navigation-item__label\">14. Equipment for the Tropical Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"14. Equipment for the Tropical Aquarium submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/14-1-uv-sterilizers-for-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">14.1. UV Sterilizers for the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"14.1. UV Sterilizers for the Aquarium submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-1-1-aquarium-uv-in-depth\/\"><span class=\"wp-block-navigation-item__label\">14.1.1. Aquarium UV in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-1-2-selecting-an-aquarium-uv-unit\/\"><span class=\"wp-block-navigation-item__label\">14.1.2 Selecting an Aquarium UV Unit<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/14-2-aquarium-substrates\/\"><span class=\"wp-block-navigation-item__label\">14.2. Aquarium Substrates<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"14.2. Aquarium Substrates submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-2-1-sand-as-an-aquarium-substrate\/\"><span class=\"wp-block-navigation-item__label\">14.2.1. Sand as an Aquarium Substrate<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-2-2-gravel-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">14.2.2. Gravel in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-2-3-buffering-substrates-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">14.2.3. Buffering Substrates in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-2-4-anaerobic-myth-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">14.2.4. Anaerobic Myth in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-3-rocks-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">14.3. Rocks in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/14-4-lights-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">14.4. Lights in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"14.4. Lights in the Aquarium submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-4-1-aquarium-light-spectrums\/\"><span class=\"wp-block-navigation-item__label\">14.4.1. Aquarium Light Spectrums<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-4-2-obsolete-lighting-standards-for-aquariums\/\"><span class=\"wp-block-navigation-item__label\">14.4.2. Obsolete Lighting Standards for Aquariums<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-5-piping-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">14.5. Piping in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-6-aquarium-pump-design\/\"><span class=\"wp-block-navigation-item__label\">14.6. Aquarium Pump Design<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-7-overflow-devices-for-aquariums\/\"><span class=\"wp-block-navigation-item__label\">14.7. Overflow Devices for Aquariums<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-8-aquarium-heaters\/\"><span class=\"wp-block-navigation-item__label\">14.8. Aquarium Heaters<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-9-wavemakers-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">14.9. Wavemakers in the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-10-wood-in-an-aquarium\/\"><span class=\"wp-block-navigation-item__label\">14.10. Wood in an Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-11-fish-electrocution\/\"><span class=\"wp-block-navigation-item__label\">14.11. Fish Electrocution<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-12-silicone-rubber-for-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">14.12. Silicone Rubber for the Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-13-aquarium-electric-cost\/\"><span class=\"wp-block-navigation-item__label\">14.13. Aquarium Electric Cost<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/14-14-cleaning-old-aquariums\/\"><span class=\"wp-block-navigation-item__label\">14.14. Cleaning Old Aquariums<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/15-planted-aquariums\/\"><span class=\"wp-block-navigation-item__label\">15. Planted Aquariums<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"15. Planted Aquariums submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-1-planted-aquariums-in-depth\/\"><span class=\"wp-block-navigation-item__label\">15.1. Planted Aquariums in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-2-fish-for-a-planted-aquarium\/\"><span class=\"wp-block-navigation-item__label\">15.2. Fish for a Planted Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-3-fish-limitations-in-a-planted-aquarium\/\"><span class=\"wp-block-navigation-item__label\">15.3. Fish Limitations in a Planted Aquarium<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-4-types-of-planted-aquariums\/\"><span class=\"wp-block-navigation-item__label\">15.4. Types of Planted Aquariums<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/15-5-aquarium-fertilizing\/\"><span class=\"wp-block-navigation-item__label\">15.5. Aquarium Fertilizing<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"15.5. Aquarium Fertilizing submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-5-1-ready-made-fertilizers\/\"><span class=\"wp-block-navigation-item__label\">15.5.1. Ready Made Fertilizers<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-5-2-fertilizer-programs\/\"><span class=\"wp-block-navigation-item__label\">15.5.2. Fertilizer Programs<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-5-3-estimative-index\/\"><span class=\"wp-block-navigation-item__label\">15.5.3. Estimative Index<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-5-4-nh4-tabs-aquarium-fertilizer\/\"><span class=\"wp-block-navigation-item__label\">15.5.4. NH4 + Tabs Aquarium Fertilizer<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-5-5-diy-epiphytic-fertilizer\/\"><span class=\"wp-block-navigation-item__label\">15.5.5. DIY Epiphytic Fertilizer<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-5-6-fish-food-fertilizer\/\"><span class=\"wp-block-navigation-item__label\">15.5.6. Fish Food Fertilizer<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-5-7-diy-fertilizers\/\"><span class=\"wp-block-navigation-item__label\">15.5.7. DIY Fertilizers<\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/15-6-carbon-dioxide-and-plants-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">15.6. Carbon Dioxide and Plants in the Aquarium<\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"15.6. Carbon Dioxide and Plants in the Aquarium submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-6-1-low-tech-co2\/\"><span class=\"wp-block-navigation-item__label\">15.6.1. Low Tech CO2<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-6-2-kh-ph-co2-relationships-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">15.6.2. KH pH CO2\u00a0Relationships in the Aquarium<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-6-3-high-tech-co2-systems\/\"><span class=\"wp-block-navigation-item__label\">15.6.3. High Tech CO2 Systems<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-6-4-co2-from-food-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">15.6.4. CO2 From Food in the Aquarium<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-6-5-aquarium-liquid-carbon-products\/\"><span class=\"wp-block-navigation-item__label\">15.6.5. Aquarium Liquid Carbon Products<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-6-6-measuring-co2\/\"><span class=\"wp-block-navigation-item__label\">15.6.6. Measuring CO2<\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-7-substrates-for-the-planted-aquarium\/\"><span class=\"wp-block-navigation-item__label\">15.7. Substrates for the Planted Aquarium<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-8-walstad-aquarium\/\"><span class=\"wp-block-navigation-item__label\">15.8. Walstad Aquarium<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-9-high-tech-planted-aquariums\/\"><span class=\"wp-block-navigation-item__label\">15.9. High Tech Planted Aquariums<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-10-hybrid-planted-aquariums\/\"><span class=\"wp-block-navigation-item__label\">15.10. Hybrid Planted Aquariums<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-11-many-fish-many-plants\/\"><span class=\"wp-block-navigation-item__label\">15.11. Many Fish Many Plants<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-12-propagating-plants\/\"><span class=\"wp-block-navigation-item__label\">15.12. Propagating Plants<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-13-hau-planted-aquariums\/\"><span class=\"wp-block-navigation-item__label\">15.13. Hau Planted Aquariums<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-14-low-tech-planted-aquariums\/\"><span class=\"wp-block-navigation-item__label\">15.14. Low Tech Planted Aquariums<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-15-sterilizing-aquarium-plants\/\"><span class=\"wp-block-navigation-item__label\">15.15. Sterilizing Aquarium Plants<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-16-natural-or-balanced-aquariums\/\"><span class=\"wp-block-navigation-item__label\">15.16. \u201cNatural\u201d or \u201cBalanced\u201d Aquariums<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/15-17-father-fish-aquariums\/\"><span class=\"wp-block-navigation-item__label\">15.17. Father Fish Aquariums<\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/16-algae-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">16. Algae in the Aquarium<\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"16. Algae in the Aquarium submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-1-aquarium-algae-biology\/\"><span class=\"wp-block-navigation-item__label\">16.1. Aquarium Algae Biology<\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/16-2-controlling-aquarium-algae\/\"><span class=\"wp-block-navigation-item__label\">16.2. Controlling Aquarium Algae<\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"16.2. Controlling Aquarium Algae submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-2-1-algae-in-fish-only-tanks\/\"><span class=\"wp-block-navigation-item__label\">16.2.1. Algae in Fish Only Tanks<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-2-2-algae-in-high-tech-tanks\/\"><span class=\"wp-block-navigation-item__label\">16.2.2. Algae in High Tech Tanks<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-2-3-algae-in-low-tech-tanks\/\"><span class=\"wp-block-navigation-item__label\">16.2.3. Algae in Low Tech Tanks<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-2-4-algae-eaters-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">16.2.4. Algae Eaters in the Aquarium<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-2-5-the-algae-war-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">16.2.5. The Algae War in the Aquarium<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-2-6-chemical-algae-control-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">16.2.6. Chemical Algae Control in the Aquarium<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-2-7-chihiros-doctor\/\"><span class=\"wp-block-navigation-item__label\">16.2.7. Chihiros Doctor<\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-3-thread-algae-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">16.3. Thread Algae in the Aquarium<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-4-blue-green-algae-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">16.4. Blue-Green Algae in the Aquarium<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-5-black-beard-algae\/\"><span class=\"wp-block-navigation-item__label\">16.5. Black Beard Algae<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-6-staghorn-algae\/\"><span class=\"wp-block-navigation-item__label\">16.6. Staghorn Algae<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-7-aquarium-green-water\/\"><span class=\"wp-block-navigation-item__label\">16.7. Aquarium Green Water<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-8-brown-algae-in-freshwater-aquariums\/\"><span class=\"wp-block-navigation-item__label\">16.8. Brown Algae in Freshwater Aquariums<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-9-green-spot-algae\/\"><span class=\"wp-block-navigation-item__label\">16.9. Green Spot Algae<\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/16-10-water-mold-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">16.10. Water Mold in the Aquarium<\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"16.10. Water Mold in the Aquarium submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-10-1-white-fuzz-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">16.10.1. White Fuzz in the Aquarium<\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-11-aquarium-slime-molds\/\"><span class=\"wp-block-navigation-item__label\">16.11. Aquarium Slime Molds<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-12-red-spot-algae-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">16.12. Red Spot Algae in the Aquarium<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/16-13-a-few-aquarium-oddities\/\"><span class=\"wp-block-navigation-item__label\">16.13. A Few Aquarium Oddities<\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/17-aquarium-fish-selection\/\"><span class=\"wp-block-navigation-item__label\">17. Aquarium Fish Selection<\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"17. Aquarium Fish Selection submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-1-native-water-chemistries\/\"><span class=\"wp-block-navigation-item__label\">17.1. Native Water Chemistries<\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/17-2-biotopes\/\"><span class=\"wp-block-navigation-item__label\">17.2. Biotopes<\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"17.2. Biotopes submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-2-1-blackwater-biotope\/\"><span class=\"wp-block-navigation-item__label\">17.2.1. Blackwater Biotope<\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-3-blackwater-fish\/\"><span class=\"wp-block-navigation-item__label\">17.3. Blackwater Fish<\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/17-4-lake-malawi-cichlids\/\"><span class=\"wp-block-navigation-item__label\">17.4. Lake Malawi Cichlids<\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"17.4. Lake Malawi Cichlids submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-4-1-malawi-aquariums\/\"><span class=\"wp-block-navigation-item__label\">17.4.1. Malawi Aquariums<\/span><\/a><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/17-5-goldfish-aquarium\/\"><span class=\"wp-block-navigation-item__label\">17.5. Goldfish Aquarium<\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"17.5. Goldfish Aquarium submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-5-1-types-of-goldfish\/\"><span class=\"wp-block-navigation-item__label\">17.5.1. Types of Goldfish<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-5-2-size-of-goldfish\/\"><span class=\"wp-block-navigation-item__label\">17.5.2. Size of Goldfish<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-5-3-stocking-goldfish\/\"><span class=\"wp-block-navigation-item__label\">17.5.3. Stocking Goldfish<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-5-4-goldfish-care\/\"><span class=\"wp-block-navigation-item__label\">17.5.4. Goldfish Care<\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-6-guppies-and-livebearers\/\"><span class=\"wp-block-navigation-item__label\">17.6. Guppies and Livebearers<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-7-aquarium-bettas\/\"><span class=\"wp-block-navigation-item__label\">17.7. Aquarium Bettas<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-8-oscars-in-the-aquarium\/\"><span class=\"wp-block-navigation-item__label\">17.8 Oscars in the Aquarium<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-9-nano-aquariums\/\"><span class=\"wp-block-navigation-item__label\">17.9. Nano Aquariums<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-10-aquarium-shrimp\/\"><span class=\"wp-block-navigation-item__label\">17.10. Aquarium Shrimp<\/span><\/a><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/17-11-discus\/\"><span class=\"wp-block-navigation-item__label\">17.11. Discus<\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"17.11. Discus submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-11-1-discus-husbandry\/\"><span class=\"wp-block-navigation-item__label\">17.11.1. Discus Husbandry<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-11-2-filtration-for-discus\/\"><span class=\"wp-block-navigation-item__label\">17.11.2. Filtration for Discus<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-11-3-water-for-discus\/\"><span class=\"wp-block-navigation-item__label\">17.11.3. Water for Discus<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-11-4-food-for-discus\/\"><span class=\"wp-block-navigation-item__label\">17.11.4. Food for Discus<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-11-5-discus-pheromones\/\"><span class=\"wp-block-navigation-item__label\">17.11.5. Discus Pheromones<\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/17-11-6-breeding-discus\/\"><span class=\"wp-block-navigation-item__label\">17.11.6. Breeding Discus<\/span><\/a><\/li><\/ul><\/li><\/ul><\/li><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/18-aquarium-maintenance\/\"><span class=\"wp-block-navigation-item__label\">18. Aquarium Maintenance<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"18. Aquarium Maintenance submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li data-wp-context=\"{ &quot;submenuOpenedBy&quot;: { &quot;click&quot;: false, &quot;hover&quot;: false, &quot;focus&quot;: false }, &quot;type&quot;: &quot;submenu&quot;, &quot;modal&quot;: null, &quot;previousFocus&quot;: null }\" data-wp-interactive=\"core\/navigation\" data-wp-on--focusout=\"actions.handleMenuFocusout\" data-wp-on--keydown=\"actions.handleMenuKeydown\" data-wp-on--pointerenter=\"actions.openMenuOnHover\" data-wp-on--pointerleave=\"actions.closeMenuOnHover\" data-wp-watch=\"callbacks.initMenu\" tabindex=\"-1\" class=\"wp-block-navigation-item has-child open-on-hover-click wp-block-navigation-submenu\"><a class=\"wp-block-navigation-item__content\" href=\"https:\/\/aquainfo.nl\/en\/18-1-aquarium-water-changes\/\"><span class=\"wp-block-navigation-item__label\">18.1. Aquarium Water Changes<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><button data-wp-bind--aria-expanded=\"state.isSubmenuOpen\" data-wp-on--click=\"actions.toggleMenuOnClick\" aria-label=\"18.1. Aquarium Water Changes submenu\" class=\"wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle\" ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" viewBox=\"0 0 12 12\" fill=\"none\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M1.50002 4L6.00002 8L10.5 4\" stroke-width=\"1.5\"><\/path><\/svg><\/button><ul data-wp-on--focus=\"actions.openMenuOnFocus\" style=\"color:#005d94\" class=\"wp-block-navigation__submenu-container has-text-color has-background has-white-background-color wp-block-navigation-submenu\"><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/18-1-1-water-changes-in-depth\/\"><span class=\"wp-block-navigation-item__label\">18.1.1. Water Changes in Depth<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/18-1-3-water-change-water\/\"><span class=\"wp-block-navigation-item__label\">18.1.3. Water Change Water<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/18-1-2-aquarium-water-change-math\/\"><span class=\"wp-block-navigation-item__label\">18.1.2. Aquarium Water Change Math<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/18-1-4-softened-ro-di-tds\/\"><span class=\"wp-block-navigation-item__label\">18.1.4. Softened, RO, DI, TDS<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/18-2-drip-water-changes\/\"><span class=\"wp-block-navigation-item__label\">18.2. Drip Water Changes<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/18-3-cleaning-the-substrate\/\"><span class=\"wp-block-navigation-item__label\">18.3. Cleaning the Substrate<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/18-4-cleaning-a-filter\/\"><span class=\"wp-block-navigation-item__label\">18.4. Cleaning a Filter<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/18-5-heavy-stocked-maintenance\/\"><span class=\"wp-block-navigation-item__label\">18.5. Heavy Stocked Maintenance<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/18-6-old-tank-syndrome\/\"><span class=\"wp-block-navigation-item__label\">18.6. Old Tank Syndrome<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><li class=\"wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/aquainfo.nl\/en\/18-7-sick-tank-syndrome\/\"><span class=\"wp-block-navigation-item__label\">18.7. Sick Tank Syndrome<\/span><span class=\"wp-block-navigation-item__description\"> <\/span><\/a><\/li><\/ul><\/li><\/ul><\/nav>\n\n\n<p class=\"wp-block-paragraph\"><strong>Source<\/strong>: <a href=\"https:\/\/aquariumscience.org\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Aquariumscience.org<\/a> &#8211; David Bogert<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A continuous drip water change system uses permanent plumbing to continuously and automatically change the water in one or more aquariums via a 24\/7 drip. <\/p>\n","protected":false},"author":566,"featured_media":97912,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[55862],"tags":[],"class_list":["post-97861","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aquariumscience"],"featured_image_urls_v2":{"full":["https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Drip-Water-Changes.jpeg",768,578,false],"thumbnail":["https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Drip-Water-Changes-150x113.jpeg",150,113,true],"medium":["https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Drip-Water-Changes-300x226.jpeg",300,226,true],"medium_large":["https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Drip-Water-Changes.jpeg",768,578,false],"large":["https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Drip-Water-Changes.jpeg",768,578,false],"1536x1536":["https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Drip-Water-Changes.jpeg",768,578,false],"2048x2048":["https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Drip-Water-Changes.jpeg",768,578,false],"commercegurus-pdp-large":["https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Drip-Water-Changes.jpeg",768,578,false],"commercegurus-plp-mobile":["https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Drip-Water-Changes-441x332.jpeg",441,332,true],"woocommerce_thumbnail":["https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Drip-Water-Changes-300x226.jpeg",300,226,true],"woocommerce_single":["https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Drip-Water-Changes-600x452.jpeg",600,452,true],"woocommerce_gallery_thumbnail":["https:\/\/aquainfo.nl\/wp-content\/uploads\/2023\/09\/Drip-Water-Changes-150x113.jpeg",150,113,true]},"post_excerpt_stackable_v2":"<p>A continuous drip water change system uses permanent plumbing to continuously and automatically change the water in one or more aquariums via a 24\/7 drip. <\/p>\n","category_list_v2":"<a href=\"https:\/\/aquainfo.nl\/en\/category\/aquariumscience\/\" rel=\"category tag\">AquariumScience<\/a>","author_info_v2":{"name":"David Bogert","url":"https:\/\/aquainfo.nl\/en\/author\/david-bogert\/"},"comments_num_v2":"0 comments","_links":{"self":[{"href":"https:\/\/aquainfo.nl\/en\/wp-json\/wp\/v2\/posts\/97861","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aquainfo.nl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aquainfo.nl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aquainfo.nl\/en\/wp-json\/wp\/v2\/users\/566"}],"replies":[{"embeddable":true,"href":"https:\/\/aquainfo.nl\/en\/wp-json\/wp\/v2\/comments?post=97861"}],"version-history":[{"count":0,"href":"https:\/\/aquainfo.nl\/en\/wp-json\/wp\/v2\/posts\/97861\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aquainfo.nl\/en\/wp-json\/wp\/v2\/media\/97912"}],"wp:attachment":[{"href":"https:\/\/aquainfo.nl\/en\/wp-json\/wp\/v2\/media?parent=97861"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aquainfo.nl\/en\/wp-json\/wp\/v2\/categories?post=97861"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aquainfo.nl\/en\/wp-json\/wp\/v2\/tags?post=97861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}