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MarinePure High Performance Biofilter Media MP2C (1 Cubic Foot) - Cermedia
Cermedia$189.99MarinePure 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... -
MarinePure Biofilter 1.5" Spheres (5 Gallon) Bucket - Cermedia
Cermedia$256.491½" 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...