API BIO-CHEM ZORB POUCH, SIZE 6

Containing a superior blend of resins and activated carbon that removes aquarium contaminants – including colors, odors, heavy metals and toxic gases – API® BIO-CHEM ZORB filter media makes your aquarium water crystal clear. The product also removes light-blocking impurities to improve the growth of corals in saltwater and plants in freshwater aquariums.