Aquarium Pharmaceuticals Bio-Chem Zorb formerly branded Rena Bio-Chem Zorb is the most scientifically-advanced filter media available. Use Bio Chem Zorb for sparkling clean water and healthy fish! Pet Mountain is proud to offer discount bulk pet products.
INSTRUCTIONS: Easy-to-use pouch works three to six months, change regularly for clean & clear water.
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.