Api Activated Filter Carbon|156g&312g

APIActivated Filter Carbon contains a special blend of highly activated carbon that removes poisonous waste and toxins from fresh and saltwater aquariums. Product may be used in all filter cartridges. Use when setting up a new aquarium or in established aquariums to improve water clarity and remove waste, colors, odors, and medications. The result is a safe and healthy underwater world for your fish! DIRECTIONS FOR USE: Use 0.5 cups per every 10 gallons of aquarium water.