Help your finned friends breathe easily with the Aquascape Beneficial Bacteria Dry Fish Filter Media! It features eight pure strains of beneficial bacteria， as well as enzymes and PSB to clarify pond water， reduce maintenance and control harmful ammonia and nitrite. It includes natural cleaners to clarify your pond by clumping and settling debris. It promotes clean， clear water conditions and a healthy pond environment. It’s safe to use with fish， plants， and animals. Use as a weekly maintenance treatment to keep your scaly sidekicks happy and healthy!