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.

• 1 pack - size 6.
• Rinse pouch under tap water to remove the loose dust.
• Pouch does not need to rinse clear.
• Place pouch in path of water flow in the aquarium filter.
• Replace every 2 months, or sooner if aquarium is heavily stocked and/or colors or odors are detected.