Containing a superior blend of resins and activated carbon that removes aquarium pollutants – including colors, odors, heavy metals, and toxic gases – API® BIO-CHEM ZORB filtration media makes aquarium water crystal clear. Product also removes light blocking impurities for improved growth of corals in saltwater, and for plants in freshwater aquariums.

The pouch treats 210lts of aquarium water

Sold as a loose pouch in a clear sealed bag