Aqueon Filter Media Bio-Ceramic Rings 1 LB

Bio-Ceramic Rings provide biological filtration; the porous surface is ideal for beneficial bacteria growth. This media can be used with internal, canister, hang on the back and wet/dry sump systems. Aqueon Filter Media can be used with various fish tank filters (hang-on-the-back, internal, canister, sump, etc.) to improve appearance and quality of aquarium water for fish. Promotes beneficial biological bacteria growth on its surface area For use with freshwater or salt water applications Can be used with various fish tank filters, including the Aqueon Canister Filters