CerMedia MarinePure BioFilter Media MP2C 1 cubic foot
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Designed for Ammonia and Nitrite Removal
2-inch cubes specifically designed for the high flow of koi and goldfish ponds and recirculating aquaculture systems.
One cubic foot is good for 1,500 to 2,000 gallons of water.
MP2C is LOOSE PACKED.
Use in sumps, extra-large filters and shower filters.