Aqueon Filter Media Bio-Ceramic Rings

Aqueon Bio-Ceramic Rings can be used with different types of filgters for both freshwater and saltwater enviorments. Bio-ceramic rings are a great biological media option. They are designed with an abundant surface area to foster propagation of beneficial bacteria. Porous surface is ideal for beneficial bacteria growth for a healthier aquatic enviorment. For use with different filter type canisters wet or dry.