{"title":"Sponge Filters","description":null,"products":[{"product_id":"ocean-free-bio-foam-sponge-filter","title":"Ocean Free Bio Foam Sponge Filter","description":"\u003cp data-path-to-node=\"0\" id=\"p-rc_90b8ef58cfa0c74c-56\"\u003e\u003cspan class=\"citation-191\"\u003eProtect your delicate fry and sensitive livestock with the \u003c\/span\u003e\u003cb data-path-to-node=\"0\" data-index-in-node=\"59\"\u003e\u003cspan class=\"citation-191\"\u003eOcean Free Bio Foam Sponge Filter\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-191 citation-end-191\"\u003e, an innovative multi-layered filtration solution engineered specifically for small, community, or breeding aquariums.\u003csup class=\"superscript\" data-turn-source-index=\"1\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-190 citation-end-190\"\u003eDesigned to provide exceptional bacterial colonization without generating excessive water turbulence, this filter ensures a stable and secure environment for species such as Discus, dwarf shrimp, and newborn fry.\u003csup class=\"superscript\" data-turn-source-index=\"2\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"1\" id=\"p-rc_90b8ef58cfa0c74c-57\"\u003e\u003cspan class=\"citation-189 citation-end-189\"\u003eFeaturing a smart design where the entire surface area of the Bio-Foam works actively to eliminate dead spots, it easily connects to standard airline tubing using an air pump, powerhead, or hang-on filter setup.\u003csup class=\"superscript\" data-turn-source-index=\"3\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\" id=\"p-rc_90b8ef58cfa0c74c-58\"\u003e\u003ci data-path-to-node=\"2\" data-index-in-node=\"0\"\u003eNote for Beginner Aquarists:\u003c\/i\u003e Sponge filters are the gold standard for beginners because they are virtually foolproof. \u003cspan class=\"citation-188 citation-end-188\"\u003eThey provide safe mechanical and biological filtration without the risk of small fish or fry getting sucked into an impeller, and the sponge elements can be easily rinsed and reused during routine water changes.\u003csup class=\"superscript\" data-turn-source-index=\"4\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"3\"\u003eShort Description \u0026amp; Highlights\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\" id=\"p-rc_90b8ef58cfa0c74c-59\"\u003eThe Ocean Free Bio Foam Sponge Filter combines multi-layered media with gentle, uniform water flow. \u003cspan class=\"citation-187 citation-end-187\"\u003eIt protects fragile aquatic life while supporting robust beneficial bacteria colonies necessary for pristine water quality.\u003csup class=\"superscript\" data-turn-source-index=\"5\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003eKey Product Highlights:\u003c\/b\u003e\u003c\/p\u003e\n\u003ctable data-path-to-node=\"6\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,1,0,0\"\u003e\u003cb data-path-to-node=\"6,1,0,0\" data-index-in-node=\"0\"\u003eProduct Name\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,1,1,0\"\u003eOcean Free Bio Foam Sponge Filter\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,2,0,0\"\u003e\u003cb data-path-to-node=\"6,2,0,0\" data-index-in-node=\"0\"\u003eFiltration Type\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,2,1,0\"\u003eMulti-Layer Mechanical \u0026amp; Biological Sponge\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,3,0,0\"\u003e\u003cb data-path-to-node=\"6,3,0,0\" data-index-in-node=\"0\"\u003eTarget Aquariums\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,3,1,0\"\u003eBreeding tanks, fry tanks, nano setups, Discus systems\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,4,0,0\"\u003e\u003cb data-path-to-node=\"6,4,0,0\" data-index-in-node=\"0\"\u003eCompatibility\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,4,1,0\"\u003eStandard airline tubing (Air pump\/powerhead required)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,5,0,0\"\u003e\u003cb data-path-to-node=\"6,5,0,0\" data-index-in-node=\"0\"\u003eMaintenance\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,5,1,0\"\u003eRemovable, rinseable, and reusable foam\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,6,0,0\"\u003e\u003cb data-path-to-node=\"6,6,0,0\" data-index-in-node=\"0\"\u003eAvailable Sizes\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,6,1,0\"\u003eBaby, BF1, BF2, BF4, Jumbo (Up to 680L capacity options)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,7,0,0\"\u003e\u003cb data-path-to-node=\"6,7,0,0\" data-index-in-node=\"0\"\u003eSkill Level\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,7,1,0\"\u003eBeginner Friendly\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-path-to-node=\"8\"\u003eDetailed Size Specifications \u0026amp; Capacity Guide\u003c\/h3\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\" id=\"p-rc_90b8ef58cfa0c74c-60\"\u003e\u003cb data-path-to-node=\"9,0,0\" data-index-in-node=\"0\"\u003eBaby Model:\u003c\/b\u003e \u003cspan class=\"citation-186 citation-end-186\"\u003eFor tanks up to 40L (Dimensions: 5.5cm diameter x 7.3cm high, plus ~5.5cm riser tube)\u003csup class=\"superscript\" data-turn-source-index=\"6\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,0\" id=\"p-rc_90b8ef58cfa0c74c-61\"\u003e\u003cb data-path-to-node=\"9,1,0\" data-index-in-node=\"0\"\u003eBF1 Model:\u003c\/b\u003e \u003cspan class=\"citation-185 citation-end-185\"\u003eFor tanks up to 100L (Dimensions: 8.5cm diameter x 9cm high, plus ~7cm riser tube)\u003csup class=\"superscript\" data-turn-source-index=\"7\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,0\" id=\"p-rc_90b8ef58cfa0c74c-62\"\u003e\u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"0\"\u003eBF2 Model:\u003c\/b\u003e \u003cspan class=\"citation-184 citation-end-184\"\u003eFor tanks up to 200L (Dimensions: 8.5cm diameter x 14cm high, plus ~7cm riser tube)\u003csup class=\"superscript\" data-turn-source-index=\"8\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,3,0\" id=\"p-rc_90b8ef58cfa0c74c-63\"\u003e\u003cb data-path-to-node=\"9,3,0\" data-index-in-node=\"0\"\u003eBF4 Model:\u003c\/b\u003e \u003cspan class=\"citation-183 citation-end-183\"\u003eFor tanks up to 380L (Dimensions: 10.5cm diameter x 14cm high, plus ~7cm riser tube)\u003csup class=\"superscript\" data-turn-source-index=\"9\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,4,0\" id=\"p-rc_90b8ef58cfa0c74c-64\"\u003e\u003cb data-path-to-node=\"9,4,0\" data-index-in-node=\"0\"\u003eJumbo Model:\u003c\/b\u003e \u003cspan class=\"citation-182 citation-end-182\"\u003eFor tanks up to 680L (Dimensions: 15.5cm diameter x 19.5cm high, plus ~15cm riser tube)\u003csup class=\"superscript\" data-turn-source-index=\"10\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"0\" id=\"p-rc_64c2f0356ff2481f-35\"\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Ocean Free","offers":[{"title":"Baby Model: For tanks up to 40L","offer_id":57307609891156,"sku":"BFBaby-20010","price":2.5,"currency_code":"EUR","in_stock":true},{"title":"BF1 Model: For tanks up to 100L","offer_id":57307609923924,"sku":"BF-100082","price":4.5,"currency_code":"EUR","in_stock":true},{"title":"BF2 Model: For tanks up to 200L","offer_id":57307609956692,"sku":"BF - 200912","price":6.5,"currency_code":"EUR","in_stock":false},{"title":"BF4 Model: For tanks up to 380L","offer_id":57307609989460,"sku":"BF-400324","price":8.5,"currency_code":"EUR","in_stock":true},{"title":"Jumbo Model: For tanks up to 680L","offer_id":57307610022228,"sku":null,"price":12.5,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1052\/5828\/7444\/files\/baby.jpg?v=1790525881"},{"product_id":"ista-bio-sponge-filter","title":"Ista Bio-Sponge Filter","description":"\u003cp data-path-to-node=\"0\" id=\"p-rc_411a3a016c929a96-83\"\u003eProvide your aquarium inhabitants with optimal water quality and gentle filtration using the \u003cb data-path-to-node=\"0\" data-index-in-node=\"93\"\u003eIsta Bio-Sponge Filter\u003c\/b\u003e. \u003cspan class=\"citation-285 citation-end-285\"\u003eExpertly engineered for both mechanical and biological performance, this air-driven filter is an indispensable tool for hobbyists.\u003csup class=\"superscript\" data-turn-source-index=\"1\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e It traps floating debris within its micro-porous foam while cultivating vast colonies of beneficial nitrifying bacteria. Its secure, shrimp-safe intake structure makes it ideal for community setups, delicate fry breeding tanks, and planted aquariums. \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"1\" id=\"p-rc_411a3a016c929a96-84\"\u003e\u003ci data-path-to-node=\"1\" data-index-in-node=\"0\"\u003eNote for Beginner Aquarists:\u003c\/i\u003e The Ista Sponge Filter is one of the most user-friendly filtration systems available. \u003cspan class=\"citation-284 citation-end-284\"\u003eIt requires minimal setup, operates quietly when connected to a standard air pump, and ensures your sensitive livestock—such as dwarf shrimp and baby fish—will not get sucked into the motor.\u003csup class=\"superscript\" data-turn-source-index=\"2\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"2\"\u003eShort Description \u0026amp; Highlights\u003c\/h3\u003e\n\u003cp data-path-to-node=\"3\" id=\"p-rc_411a3a016c929a96-85\"\u003e\u003cspan class=\"citation-283 citation-end-283\"\u003eThe Ista Bio-Sponge Filter combines dual-chamber performance with a reliable weighted base to deliver steady, oxygen-rich water circulation.\u003csup class=\"superscript\" data-turn-source-index=\"3\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e Its modular configuration simplifies routine maintenance, allowing beginners to manage water health with complete confidence. \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"0\"\u003eKey Product Highlights:\u003c\/b\u003e\u003c\/p\u003e\n\u003ctable data-path-to-node=\"5\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,1,0,0\"\u003e\u003cb data-path-to-node=\"5,1,0,0\" data-index-in-node=\"0\"\u003eProduct Name\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,1,1,0\"\u003eIsta Bio-Sponge Filter\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,2,0,0\"\u003e\u003cb data-path-to-node=\"5,2,0,0\" data-index-in-node=\"0\"\u003eFiltration Type\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,2,1,0\"\u003eDual Mechanical \u0026amp; Biological\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,3,0,0\"\u003e\u003cb data-path-to-node=\"5,3,0,0\" data-index-in-node=\"0\"\u003ePower Source\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,3,1,0\"\u003eAir-Driven (Requires separate air pump)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,4,0,0\"\u003e\u003cb data-path-to-node=\"5,4,0,0\" data-index-in-node=\"0\"\u003eSafety Features\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,4,1,0\"\u003eFry-safe and shrimp-safe gentle intake\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,5,0,0\"\u003e\u003cb data-path-to-node=\"5,5,0,0\" data-index-in-node=\"0\"\u003eSkill Level\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,5,1,0\"\u003eBeginner to Advanced Aquarist\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,6,0,0\"\u003e\u003cb data-path-to-node=\"5,6,0,0\" data-index-in-node=\"0\"\u003eIdeal Applications\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,6,1,0\"\u003eBreeding tanks, quarantine setups, shrimp tanks, nano aquariums\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,7,0,0\"\u003e\u003cb data-path-to-node=\"5,7,0,0\" data-index-in-node=\"0\"\u003eMaintenance\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"5,7,1,0\"\u003eLow-effort; rinse in old aquarium water\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-path-to-node=\"7\"\u003eDetailed Beginner Operation \u0026amp; Maintenance Guide\u003c\/h3\u003e\n\u003cp data-path-to-node=\"8\" id=\"p-rc_411a3a016c929a96-86\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003e1. Initial Setup\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\" id=\"p-rc_411a3a016c929a96-86\"\u003eRinse the sponge thoroughly in lukewarm tap water before use. \u003cspan class=\"citation-282 citation-end-282\"\u003eAttach the unit to a standard aquarium air pump using airline tubing (and a check valve if the pump sits below water level).\u003csup class=\"superscript\" data-turn-source-index=\"4\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e Place the weighted base securely onto the bottom substrate of your tank. \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\" id=\"p-rc_411a3a016c929a96-87\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003e2. Biological Function\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\" id=\"p-rc_411a3a016c929a96-87\"\u003eAs air rises through the central lift tube, it draws water evenly through the porous sponge exterior. \u003cspan class=\"citation-281 citation-end-281\"\u003eThis process removes suspended waste particles while maximizing dissolved oxygen levels, creating a thriving environment for essential beneficial bacteria.\u003csup class=\"superscript\" data-turn-source-index=\"5\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\" id=\"p-rc_411a3a016c929a96-88\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003e3. Routine Maintenance\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\" id=\"p-rc_411a3a016c929a96-88\"\u003eTo preserve beneficial bacteria, never clean your sponge filter under untreated tap water. \u003cspan class=\"citation-280 citation-end-280\"\u003eDuring routine water changes, gently squeeze the sponge portions inside a bucket containing extracted tank water to clear out accumulated organic sludge before reassembling.\u003csup class=\"superscript\" data-turn-source-index=\"6\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Ista","offers":[{"title":"Sponge filter with base 21×8.5cm L","offer_id":57307716485460,"sku":"IST-I-148","price":4.15,"currency_code":"EUR","in_stock":true},{"title":"Sponge filter with base 21x12cm XL","offer_id":57307716518228,"sku":"IST-I-149","price":6.57,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1052\/5828\/7444\/files\/Istamedium.jpg?v=1790526773"}],"url":"https:\/\/www.tropicalmarineaquatic.com\/collections\/sponge-filters.oembed","provider":"Tropical Marine Aquatic","version":"1.0","type":"link"}