2 Pcs Sponge Filter,Fish Tank Filter,Sponge Filters for Aquarium,Fish Tank Aquarium Soft Biochemical Sponge Filter,Mini Cylinder Soft Biochemical Sponge Filter,for Fish Tank Water Pool

【Safety Material】The sponge filter is made of high-quality ABS+cotton, which is durable, and is equipped with an environmentally friendly sponge that does not hurt the fish. 【Fine Filtration】As the water passes through the pores, the sponge will trap debris from your tank, leaving the water crystal clear. It is very efficient and will break down toxic waste from the tank. 【How It Works】This aquarium filter is powered by an aeration pump.It can decompose harmful substances by sponge nitrifying bacteria and transformed into substances that are harmless to fish and returned to the aquarium. It works without noise and will not disturb your daily life. 【Easy to Wash & Reuse】The sponge can be used multiple times. Instead of tap water, use water from the tank, to clean it, when doing water change. Simply rinse and squeeze a few times over until you see the water run clear from the sponge. 【Widely Use】This fish tank filter is small in size and easy to hide behind the plant. It fits into any corner and is ideal for shrimp tanks, rearing tanks, betta fish tanks, nano water tanks, turtle tanks, fish tanks, goldfish, baby fish or other fish.