2 Pieces Aquarium Betta Filter, Sponge Biochemical Filter, Aquarium Fish Tank Mini Filter, Aquarium Accessories for Fish Tank Fish Shrimp Breeding Oxygen (Black)

[Improve Water Quality] The pores of the sponge filter have a large surface area for aerobic bacteria to colonize. Growing nitrifying bacteria can provide excellent biological filtration for your water tank. Betta fish, fry and other small fish will never be sucked into the filter. The slow flow of this filter is ideal for breeding and spawning discus, dwarf cichlids, guppies and killifish./

[Fine Filtration] As water passes through the pores, the sponge traps debris from your tank, making the water clear and transparent. It is very effective and can break down toxic waste in the water tank./

Easy to Clean and Reuse: The sponge can be used many times. When changing the water, do not use tap water, but use water from the water tank for cleaning. Just rinse and wring a few times until water comes out of the sponge./

Versatility: This aquarium filter is small and can be easily hidden behind plants. It is suitable for all corners, very suitable for shrimp tanks, breeding tanks, betta fish tanks, nano tanks, turtle tanks, fish tanks, goldfish, fish fry or other fish.