'-The sponge filter are made of excellent and perfect material, it can be reused for long time.
-The sponge filter are designed by multilayer principle, it has large surface, which will not cause blockage and could be wash easily.
-When using in filter system, the sponge filter will not cause any noise pollution.
-When using air stone which will produce air supply for the aquarium tank, it will increase oxygen level in the tank.
-The sponge filter had gone through tough test in all expected situation for the perfect quality.
-The sponge filter is suitable for all Freshwater fishes, like Discus, Tetras, Guppy, Arowana, Betta Etc...