chemical sponge filter is a filter that keeps your aquarium clean .The filter provides mechanical and biological filtration for easy aquarium maintenance.As a mechanical filtration use the air-driven system to create suction.that allows the sponge to capture floating particles in the water and return filtered water to the tank.As a biological filtration, harmful wastes are biologically transformed into a relatively harmless substance by aerobic bacteria that accumulates in the sponge.
This kind of sponge is also suitable for Discus breeding tanks, tropical fish tanks and fry stock tanks. Before use, soak the Bio-foam in aquarium water for 5 mins. During maintenance, always rinse the Bio-foam with drained out aquarium water only. No tap water or hot water should be used at all.
When re-using the Bio-foam, do squeeze the foam in the water to remove all trapped air bubbles.This will keep the filter stay submerged.