{"product_id":"biochemical-aquarium-filter-sponge-bio-foam-media","title":"Biochemical Aquarium Filter Sponge – Bio Foam Media for Fish Tank Air Pumps","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eBiochemical Aquarium Filter Sponge\u003c\/strong\u003e media provides biological filtration for fish tanks and is designed as a replacement for cotton in XY-180, XY-280, and XY-380 sponge filters. It’s built for use with aquarium air pumps to help maintain stable water quality.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eBiological filtration supports beneficial bacteria, helping to stabilize water quality during setup, changes, or after feeding spikes.\u003c\/li\u003e \u003cli\u003eEnhances oxygen diffusion in the water, supporting healthier fish and a more effective biofilter process.\u003c\/li\u003e \u003cli\u003eQuiet operation with good permeability and easy cleaning, reducing maintenance time and effort.\u003c\/li\u003e \u003cli\u003eAvailable in five sizes to fit a range of sponge-filter models and configurations, making replacement simple without altering your setup.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Biochemical sponge (bio foam)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSizes (each sponge):\u003c\/strong\u003e 11.5 cm × 11.2 cm (large); 11.5 cm × 6.5 cm (medium); 7 cm × 6.5 cm (small); 5.5 cm × 4.4 cm; 5.6 cm × 8 cm\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Replacement for aquarium filter cotton in XY-180, XY-280, XY-380, XY-2835, XY-2836\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePackage options:\u003c\/strong\u003e 1 piece, 2 pieces, or 5 pieces per order\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSetup tips:\u003c\/strong\u003e Soak the sponge in aquarium water for 5 minutes before first use to aid nitrifying bacteria colonization; rinse with room-temperature aquarium water (avoid hot water); connect to an air pump during operation\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Generic","offers":[{"title":"11.5cmx6.5cm-280 \/ 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