Aquarium Filter Media Bacteria Ceramic Bio Rings (500g) + Filter Bag

Ceramic rings are capable to support large population of water purifying bacteria. The multitude of tiny pores can support these colonies of bacteria. Ideally for biological filter media that make the most of any filtration. Its huge capacity support the organisms responsible for metabolizing ammonia and nitrite. The creamic have been high heat treated, an excellent growth of nitrifying bacteria. Anti corrosion and maintain water at premium quality.