LY-2833 Biochemical Sponge Filter   Bio Chemical Sponge materials enchances the Beneficial bacteria growth, enabling both biological and mechanical filtration. Perfect for shirmp, fry and small fish tank Easy to clean, simply rinse and squeeze sponge under cool running water Removes fish waste, Nitrate and ammonia in aquarium IF ANY DOUBTS FEEL FREE TO CONTACT US  ON YOTUBE  INSTAGRAM CONTACT US