Aquarium Filter Materials Ceramic Rings

Ceramic rings can be less economical in large quantities than some biological filter media, but they provide the most surface area and won't break down over time. Deep pores cover the inside and outside of these chemically inert, highly porous hollow structures, whose shape also distributes water flow very effectively. Perfect for canister filters and other high-flow applications. Rinse them monthly to prevent clogging (throw them in some filter bags to make them easy to remove in batches) and you will find ceramic rings to be a fantastic solution to your biological filtration needs - versatile, nearly indestructible and unsurpassed in efficiency.