{"product_id":"fluval-ac50-active-carbon-insert","title":"Fluval AC50 Active Carbon Insert","description":"\u003cp\u003eThe \u003cstrong\u003eFluval AquaClear Activated Carbon\u003c\/strong\u003e is the replacement chemical-filtration insert for the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-aquaclear-ac-series-aquarium-filters\"\u003eAquaClear 50 (AC50) power filter\u003c\/a\u003e. Premium activated carbon adsorbs dissolved organics, odors, discoloration, and tannins, leaving your water crystal clear and odor-free. It works in both freshwater and saltwater aquariums. Formerly sold as AquaClear Carbon.\u003c\/p\u003e\n\u003cp\u003eUse it as the polishing stage alongside the rest of the AC50 media: \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-ac50-biofoam-filter-insert\"\u003eBioFoam\u003c\/a\u003e for mechanical and biological filtration and, in freshwater, \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-ac50-ammonia-remover-insert\"\u003eAmmonia Remover\u003c\/a\u003e. Find every insert in our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/filter-media-cartridges\"\u003eFilter Media \u0026amp; Cartridges\u003c\/a\u003e collection.\u003c\/p\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eActivated carbon adsorbs dissolved organics, odors, and discoloration\u003c\/li\u003e\n\u003cli\u003eClears yellowing and tannins for bright, polished water\u003c\/li\u003e\n\u003cli\u003eCustom-cut insert drops straight into the AquaClear 50 \/ Fluval AC50 media basket\u003c\/li\u003e\n\u003cli\u003eWorks in freshwater and saltwater aquariums\u003c\/li\u003e\n\u003cli\u003ePre-rinsed carbon in a ready-to-use pouch, no loose media to bag\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eHow to Use\u003c\/h3\u003e\n\u003cp\u003eRinse the insert briefly, then place it in the AquaClear media basket above the foam so water passes through it last. Carbon is most active when fresh; replace it about every three to four weeks, or sooner if odors or discoloration return. Remove the carbon whenever you dose \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/medication\"\u003emedications\u003c\/a\u003e, since it will adsorb them and reduce their effect, then add fresh carbon afterward to clear any residue.\u003c\/p\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;margin:6px 0;font-size:0.95em;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;\"\u003eProduct\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eAquaClear Activated Carbon AC50 (formerly AquaClear Carbon)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;\"\u003eMedia\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003ePremium activated carbon (chemical filtration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;\"\u003eFits\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eAquaClear 50 \/ Fluval AC50 hang-on-back filter (20 to 50 gallon)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;\"\u003eRemoves\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eOdors, discoloration, tannins, dissolved organics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;\"\u003eNet weight\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e2.5 oz (70 g) per insert\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;\"\u003eSold as\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eSingle insert or 3-pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;\"\u003eWater type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eFreshwater and saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;background:#f6f6f6;padding:6px 10px;font-weight:600;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eFluval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-aquaclear-ac-series-aquarium-filters\"\u003eAquaClear \/ Fluval AC50 power filter\u003c\/a\u003e, the filter this insert fits\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-ac50-biofoam-filter-insert\"\u003eAquaClear AC50 BioFoam\u003c\/a\u003e for mechanical and biological filtration\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-ac50-ammonia-remover-insert\"\u003eAquaClear AC50 Ammonia Remover\u003c\/a\u003e for extra ammonia control in freshwater\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/filter-media-cartridges\"\u003eFilter Media \u0026amp; Cartridges\u003c\/a\u003e, all replacement media in one place\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich filter does this fit?\u003c\/strong\u003e The AquaClear 50 (also sold as the Fluval AC50), rated for 20 to 50 gallon aquariums.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should I replace it?\u003c\/strong\u003e Carbon exhausts as it fills up, so swap it about every three to four weeks for consistent water clarity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it in saltwater?\u003c\/strong\u003e Yes. Activated carbon polishes both freshwater and marine water the same way.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I remove it when treating my fish?\u003c\/strong\u003e Yes. Take the carbon out while dosing medications so it does not strip the treatment, then run fresh carbon afterward to remove any leftover residue.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Single","offer_id":48931452944603,"sku":"19643","price":4.99,"currency_code":"USD","in_stock":false},{"title":"3-Pack","offer_id":48931452977371,"sku":"19644","price":10.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_43c0551b-8645-4ff3-9796-b752a8ac5c46.jpg?v=1782931611","url":"https:\/\/squeakysaquatics.com\/products\/fluval-ac50-active-carbon-insert","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}