【Improve the quality of the water】 The pores of the sponge filter have a large area where aerobic bacteria can propagate. The cultivation of nitrifying bacteria will give you a higher biological filtration in your tank. 【Surance】 Betta, fry and other small fish will never be sucked into the filter. The slow current of this filter is ideal for the reproduction and reproduction of discus, dwarf cichlids, guppies and killifish. 【Fine filtration】 When the water passes through the pores, the pores, the pores. Sponge traps debris from your tank, leaving limpid water. It is very effective and will break down toxic waste from the tank. 【Easy to wash and reuse】 The sponge can be used several times. Instead of tap water, use the tank water to clean it during the water change. Just rinse and squeeze several times until the water flows from the sponge. 【widely used】 This aquarium filter is small and easy to hide behind the plant. It fits all over the corners and is ideal for shrimp aquariums,
