{"product_id":"fluval-ac50-biofoam-filter-insert","title":"Fluval AC50 BioFoam Filter Insert","description":"\u003cp\u003eThe \u003cstrong\u003eFluval AquaClear BioFoam\u003c\/strong\u003e is the replacement mechanical foam insert for the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-aquaclear-ac-series-aquarium-filters\"\u003eAquaClear 50 (AC50) power filter\u003c\/a\u003e. Water flows through the foam first, trapping debris and waste while the porous surface grows the beneficial bacteria that keep your aquarium cycled. Fresh foam means strong, even flow and clear, healthy water. Formerly sold as AquaClear Foam.\u003c\/p\u003e\n\u003cp\u003eRestock the whole AC50 media stack together: \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-ac50-active-carbon-insert\"\u003eActivated Carbon\u003c\/a\u003e for chemical filtration and \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-ac50-ammonia-remover-insert\"\u003eAmmonia Remover\u003c\/a\u003e for freshwater ammonia control. Browse everything 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\u003eMechanical foam traps waste, debris, and free-floating particles before they cloud the water\u003c\/li\u003e\n\u003cli\u003eLarge porous surface hosts beneficial bacteria for continuous biological filtration\u003c\/li\u003e\n\u003cli\u003eMaintains strong, even flow through the filter between cleanings\u003c\/li\u003e\n\u003cli\u003eCustom-cut to fit the AquaClear 50 \/ Fluval AC50 media basket, no trimming needed\u003c\/li\u003e\n\u003cli\u003eReusable: rinse and reinstall several times before replacing\u003c\/li\u003e\n\u003cli\u003eSafe for both freshwater and saltwater aquariums\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 new foam in dechlorinated or used aquarium water, then set it at the bottom of the AquaClear media basket so water passes through it first. At each cleaning, rinse it in siphoned tank water rather than tap water, which would kill the bacteria colony. Replace the foam roughly every two to three months, or once it no longer springs back into shape.\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 BioFoam AC50 (formerly AquaClear Foam)\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;\"\u003eFiltration\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eMechanical and biological\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 type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eReusable foam 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 foam fits\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-ac50-active-carbon-insert\"\u003eAquaClear AC50 Activated Carbon\u003c\/a\u003e for chemical filtration and odor control\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 protection 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), the model rated for 20 to 50 gallon aquariums. Other AquaClear sizes use their own foam.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should I replace it?\u003c\/strong\u003e Rinse it at every cleaning and replace it every two to three months, or when it stays compressed. Stagger foam and biomedia changes so you never swap all media at once.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it in a saltwater tank?\u003c\/strong\u003e Yes. The foam is inert and works the same in freshwater, brackish, and marine setups.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSingle or 3-pack?\u003c\/strong\u003e The foam is identical; the 3-pack simply keeps spares on hand so you always have fresh media ready.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Single","offer_id":48931474866395,"sku":"19613","price":2.99,"currency_code":"USD","in_stock":false},{"title":"3-Pack","offer_id":48931474899163,"sku":"19674","price":6.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_f025c2ae-2aea-42d7-8df3-492411bf60b2.jpg?v=1782932458","url":"https:\/\/squeakysaquatics.com\/products\/fluval-ac50-biofoam-filter-insert","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}