Sunda 100g Ceramic Rings Canister Aquarium Filter  (Biological Filtration for Salt Water and Fresh Water)

Brand new and high quality. Size of ceramic ring: 1cm x 1cm (1/2" x 1/2") Extremely porous ceramic media for efficient biological filtration. Hollow design effectively distributes water flow and allows massive colonies of beneficial bacteria to grow on and inside each ring. Great for both fresh and saltwater aquariums. More Details: These Sunda Ceramic rings will help in growth of good bacteria, which helps in decomposition of all residue material, which helps to reduce Ammonia, Nitrate & Nitrite and maintains purity of water for both freshwater and Marine Aquarium. This is essential for the healthy growth of all your aquarium fish. You should replace the rings every six months and should always replenish half of the medium at one given time. This will allow proper seeding from the older to the new media. This can be easily used in most of the canister filters (freshwater & Marine) and directly in your aquarium (freshwater & Marine)