{"id":3088,"date":"2026-01-07T17:27:32","date_gmt":"2026-01-07T17:27:32","guid":{"rendered":"https:\/\/www.discusfood.com\/en\/?page_id=3088"},"modified":"2026-10-06T13:01:47","modified_gmt":"2026-10-06T13:01:47","slug":"crystal-clean-nitrate-remover","status":"publish","type":"page","link":"https:\/\/www.discusfood.com\/en\/water-care\/nitrate-remover\/crystal-clean-nitrate-remover","title":{"rendered":"Crystal &#8211; clean nitrate remover"},"content":{"rendered":"<h2><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-medium wp-image-3262\" src=\"\/en\/wp-content\/uploads\/sites\/2\/2026\/10\/CW001-Crystal-Clear-Nitrate-Remover-Front-2-213x300.webp\" alt=\"\" width=\"213\" height=\"300\" \/>DISCUSFOOD CRYSTAL CLEAN NITRATE REMOVER<\/h2>\n<p>Precise nitrate control for aquariums with few or no aquatic plants<br \/>\nClean water. Controlled nitrate levels. Fewer unnecessary water changes.<\/p>\n<p>In many aquariums, nitrate (NO\u2083) is produced as a natural end product of the biological nitrogen cycle. Nitrate can build up continuously, particularly in heavily stocked breeding, rearing and community tanks, as well as in aquariums with few or no aquatic plants.<\/p>\n<p>Discusfood Crystal Clean Nitrate Remover has been specially developed for these types of aquarium. The high-performance, regenerable filter medium utilises the principle of ion exchange to specifically remove nitrate ions from the aquarium water.<\/p>\n<h3>Scientifically proven principle<\/h3>\n<p>In anion exchange, negatively charged ions such as nitrate (NO\u2083\u207b) are exchanged at the filter medium for other ions, typically chloride (Cl\u207b). This process has been established in water treatment for decades and is also used for the targeted removal of nitrate.<\/p>\n<h3>For the aquarium hobby, this means:<\/h3>\n<p>Nitrate is reduced where it is produced \u2013 directly within the filter circuit.<br \/>\nThe filter medium is simply placed in the final filter stage. All the filter water flows through the medium and is treated continuously as it does so.<\/p>\n<h4>Particularly suitable for<\/h4>\n<ul>\n<li>Discus breeding and rearing set-ups<\/li>\n<li>Discus aquariums<\/li>\n<li>Community aquariums<\/li>\n<li>African cichlid tanks<\/li>\n<li>Aquariums with few or no aquatic plants<\/li>\n<li>Aquariums with a high stocking density<\/li>\n<li>Aquariums where targeted nitrate control is required<\/li>\n<\/ul>\n<p>In aquariums with few plants in particular, an important natural consumer of nitrate is missing. A continuously rising nitrate level can therefore be an indication of an imbalance between nutrient input and nutrient consumption.<\/p>\n<h3>Fewer water changes \u2013 based on actual need rather than as a routine measure<\/h3>\n<p>A high nitrate level is often a reason for additional water changes. With Discusfood Crystal Clean Nitrate Remover, nitrate levels can be specifically controlled.<br \/>\nThis can help you plan water changes more closely according to actual need, rather than having to carry them out solely because nitrate levels are rising.<br \/>\nDepending on the aquarium, its inhabitants and the source water, this saves water, energy and running costs.<br \/>\nAfter all, every water change involves more than just the consumption of fresh water. In temperature-controlled aquariums, the newly added water often has to be brought back up to the required temperature.<\/p>\n<h3>Important:<\/h3>\n<p>Discusfood Crystal Clean Nitrate Remover is not a substitute for regular water changes. It is an additional tool for the targeted control of nitrate levels. Other dissolved substances, organic loading and mineral balances must still be managed through appropriate care and water changes.<\/p>\n<h3>Regenerable<\/h3>\n<p>Up to 300 uses<br \/>\nA particular advantage of Discusfood Crystal Clean Nitrate Remover is that it can be regenerated.<br \/>\nIf the exchange capacity is exhausted and the measured NO\u2083 level rises again, the filter medium can be regenerated using a defined sodium chloride solution and then reused.<\/p>\n<h3>This means the filter medium is not a disposable product:<\/h3>\n<p>insert \u2192 reduce nitrate \u2192 regenerate \u2192 reuse.<\/p>\n<p>Ion-exchange technology generally allows the regeneration of exhausted exchange capacities using concentrated salt solutions.<br \/>\nWhen used correctly, the Discusfood medium can be regenerated up to 300 times.<\/p>\n<h3>Easy to use<\/h3>\n<p>Rinse the filter bag thoroughly with cold tap water before first use and then place it in the final filter stage.<br \/>\nFilter water should flow through the entire filter medium. Measure the nitrate level regularly. The actual service life depends, amongst other things, on:<\/p>\n<ul>\n<li>Aquarium size<\/li>\n<li>Fish stock<\/li>\n<li>Amount of feed<\/li>\n<li>Source water<\/li>\n<li>Nitrate load<\/li>\n<li>Filter flow rate<\/li>\n<li>Water change interval<\/li>\n<\/ul>\n<p>Under typical conditions, the effective service life can be approximately <strong>4\u20138 weeks<\/strong>.<\/p>\n<p><strong>Do not regenerate according to the calendar \u2013 but according to the measured value.<\/strong><\/p>\n<h3>Regeneration<\/h3>\n<p>For regeneration:<\/p>\n<ul>\n<li>100 g of pure sodium chloride (NaCl) to 1 litre of cold tap water<\/li>\n<li>Dissolve the salt completely in the water.<\/li>\n<li>Remove the filter bag from the aquarium.<\/li>\n<li>Place the bag in the salt solution for 40 minutes.<\/li>\n<li>Remove the bag.<\/li>\n<li>Then rinse thoroughly under cold, running water.<\/li>\n<li>Reinsert it into the aquarium filter.<\/li>\n<\/ul>\n<h3>Important:<\/h3>\n<p>Use only pure sodium chloride (NaCl) without additives<br \/>\nNo iodised salt, no salt containing calcium or magnesium, and no salt containing anti-caking agents, flavourings or other additives.<\/p>\n<p>The regeneration solution must never be allowed to enter the aquarium. It contains concentrated dissolved substances and the ions displaced from the filter medium during regeneration. In ion-exchange processes, a contaminated regeneration solution is produced as a result, which must be disposed of properly.<\/p>\n<h3>Water parameters remain the basis<\/h3>\n<p>A filter medium can only be used optimally if the water parameters are checked regularly.<\/p>\n<p>Measure NO\u2083 \u2013 assess the effect \u2013 regenerate in good time.<\/p>\n<p>Regular monitoring of nitrate is part of systematic water quality control in aquariums. Nitrate is produced in the nitrogen cycle through the microbial breakdown of nitrogen-containing substances and can accumulate, particularly in the presence of high organic load and insufficient nutrient consumption.<\/p>\n<h3>Your benefits at a glance<\/h3>\n<p>\u2713 Targeted reduction of nitrate (NO\u2083)<br \/>\n\u2713 Ion-exchange technology<br \/>\n\u2713 Ideal for aquariums with few or no plants<br \/>\n\u2713 Particularly suitable for breeding and rearing tanks<br \/>\n\u2713 For discus and cichlid aquariums<br \/>\n\u2713 Can be regenerated up to 300 times<br \/>\n\u2713 Long service life<br \/>\n\u2713 Allows for water changes tailored to actual needs<br \/>\n\u2713 Can reduce water, energy and maintenance costs<br \/>\n\u2713 Easy to use in your existing filter system<\/p>\n<h3>DISCUSFOOD CRYSTAL CLEAN NITRATE REMOVER<\/h3>\n<p>Controlled nitrate levels. Clean water. Sustainable filter technology.<br \/>\nFor aquarists who don\u2019t leave water quality to chance.<\/p>\n<h4>Discusfood \u2013 Making good things better.<\/h4>\n<h4>Not for human consumption! STORE IN A COOL, DRY PLACE!<\/h4>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-medium wp-image-3262\" src=\"\/en\/wp-content\/uploads\/sites\/2\/2026\/10\/CW001-Crystal-Clear-Nitrate-Remover-Front-2-213x300.webp\" alt=\"\" width=\"213\" height=\"300\" \/>Item no.:<\/strong><br \/>\n<strong>CW 001 &#8211; 150\u2013250L<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-medium wp-image-3263\" src=\"\/en\/wp-content\/uploads\/sites\/2\/2026\/10\/CW002-Crystal-Clear-Nitrate-Remover-Front-2-165x300.webp\" alt=\"\" width=\"165\" height=\"300\" \/><br \/>\nItem no.:<\/strong><br \/>\n<strong>CW 002 &#8211; 250\u2013350L<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-medium wp-image-3264\" src=\"\/en\/wp-content\/uploads\/sites\/2\/2026\/10\/CW003-Crystal-Clear-Nitrate-Remover-Front-2-167x300.webp\" alt=\"\" width=\"167\" height=\"300\" \/><br \/>\nItem no.:<\/strong><br \/>\n<strong>CW 003 &#8211; 350\u2013650L<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong><br \/>\n<a href=\"https:\/\/www.discusfood.com\/en\/where-to-buy\">Where to buy<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>DISCUSFOOD CRYSTAL CLEAN NITRATE REMOVER Precise nitrate control for aquariums with few or no aquatic plants Clean water. Controlled nitrate&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":3086,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3088","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.discusfood.com\/en\/wp-json\/wp\/v2\/pages\/3088","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.discusfood.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.discusfood.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.discusfood.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.discusfood.com\/en\/wp-json\/wp\/v2\/comments?post=3088"}],"version-history":[{"count":6,"href":"https:\/\/www.discusfood.com\/en\/wp-json\/wp\/v2\/pages\/3088\/revisions"}],"predecessor-version":[{"id":3270,"href":"https:\/\/www.discusfood.com\/en\/wp-json\/wp\/v2\/pages\/3088\/revisions\/3270"}],"up":[{"embeddable":true,"href":"https:\/\/www.discusfood.com\/en\/wp-json\/wp\/v2\/pages\/3086"}],"wp:attachment":[{"href":"https:\/\/www.discusfood.com\/en\/wp-json\/wp\/v2\/media?parent=3088"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}