Laguna Bio Brick (D)

A revolutionary new Laguna Bio-Brick is made out of fire kilned clay helps to house beneficial bacteria and to remove toxic waste such as ammonia, nitrite and nitrate from pond water. This ensures that optimum water environment for your fish. The Laguna Bio-Brick is suitable for the Laguna PowerClear Multi 3500 (PT1817) and Laguna PowerClear Multi 7000 (PT1818).