Cermedia MarinePure High Performance Biofilter Media MP2C (1 Cubic Foot) - Cermedia $189.99 MarinePure is the perfect place for beneficial bacteria to flourish in order to remove harmful fish wastes. It will eliminate ammonia and lower nitrates. 2-inch cubes specifically designed for the high flow of koi and goldfish ponds and recirculating... Add to Cart
Cermedia MarinePure Biofilter 1.5" Spheres (5 Gallon) - Cermedia $256.49 1½" Spheres Designed for Ammonia and Nitrite Removal One MarinePure Sphere has the same surface area as 1,350 plastic 1.5" bio-balls. Primarily designed to provide deep anaerobic zones for de-nitrification in passive systems. Live rock... Add to Cart