7 Type Aquarium Filter Sponge Fish Air Pump Skimmer Biochemical Sponge Filter Aquarium Filtration Filter Fish Tank Ppurification Water Fairy Biochemical Filter Fish Tank Shrimp Tank Aquarium Aerobic Culture Bacteria Cultivation Water Rearing Anti

Product Introduction: With an airlift system, super biochemical sponge filter features silent operation, and has an excellent filtering effect while oxygenation the water, the special developed foam materials supports the colonization of bacteria, allowing for mechanical filtration in addition to biological filtration, which will break down harmful waste, ammonia and nitrite material, resulting in a cleaner living environment for your fish, particular they are useful for as breeding filter or as secondary filter.   Features: 100% Brand new and high quality. Safe and durable products for your pet Supplying the water with much needed oxygen It reduces noise from air pump and consumes lowest wattage. Most fit to external or top filter as purification unit No dead spots in cylinder foam offers increased filtration. Easy maintenance is made by nodular design of foam cartridge system. Biochemical sponge filter Provides biological filtration to the aquarium, helps to stable water quality Increase the oxygen solubility. Working noiselessly Good permeability, easy to clean. Adhere smooth surface with suction cup. Perfect filters accessories for your tank and aquarium.   Speicificaitons: Product name: Aquarium Sponge Filter or Replace Cotton Color: Show as picture Model Number: Total 7 types to choose.(Show as picture below) Sponge Size: Show as picture below. Qty: 1Pcs Warm reminders for successful operation: Soak the sponge in the aquarium water for 5 minutes before use, by doing this will help nitrifying bateria colonise easier. Always use aquarium water under room temperature to rinse clean the sponge, never use hot water. Note: Dear friend, For the sponge filter , we have to two types, one is only replace cotton, another is complete set of sponge filter.