The Biochemical Filter has the best effect on decomposing the excrement and the forage leftover. Its multi-porous feature will avoid blockages and provide the largest adhesion area for bacteria. The material has great thickness, it is durable. Very suitable for use in freshwater and marine water. Can be cut in any size you’re needed. Lightweight, soft design. Excellent water permeability.
Replace the bio-sponge for three months, to ensure the filtrating effect as well as the growth of the nitrifying bacteria.