API Bio-Chem Zorb Filter Media Cleans and Clears Aquarium Water Size 6 [Aquarium Chemical Media, Aquarium Supplies] 1 count

API Bio-Chem Zorb (merly branded Rena Bio-Chem Zorb) is the most scientifically-advanced filter media available. Use Bio-Chem Zorb sparkling clean water and healthy fish! * Removes organic waste, toxic gases, water discoloration, foul odors and phenols in fresh and saltwater aquariums * Removes toxic heavy metals in freshwater * Bio-Chem Zorb will not release phosphates Bio-Chem Zorb is a blend of 2 research-grade scavenger resins, 2 pharmaceutical-grade ion-exchange resins and high porosity activated carbon in a convenient filter pouch. Directions: Easy-to-use pouch works three to six months, change regularly clean and clear water. Specifications: * Size 6 - Can be used on any aquarium filter including the API XP Canister Filter up to 55 gallons