Composed of natural and synthetic ion-exchange resins in a convenient pouch. Selectively removes ammonia, nitrite and nitrate from freshwater aquariums. Completely rechargeable with Doc Wellfish's Aquarium Salt. 7.4 oz pouch in jar Treats up to 55 gallons

Item ID:AAP110A

Item Name:Aquarium Pharmaceuticals - NITRA-ZORB™

10.99