Shaped as smooth, hollow ceramic tubes, this mechanical filter media works much like a sieve trapping articulate waste as it passes through the material. EHFIMECH (Hollow Ceramic Rings) 1L: A coarse mechanical filter material whi...
Bio-Mate Refillable Media Balls Provides maximum surface area with the greatest possible mix of air and water. Cultivates nitrifying bacteria. Promotes gas exchange, increases dissolved oxygen level and removes harmful gases. Wil...