The benefits of using Chemipure Blue: Keeps pH stable and constant Reduces fish loss due to pH changes or polluted water Keeps aquariums crystal clear Provides positive neurological reactions in fish, mimicking a natural environment Removes dissolved organics Helps fish have a better appetite Eliminates osmotic shock Increases fish life span Filters out coppers, metals, odors and phenol Prevents ion antagonism Chemi-pure Blue is specially created for fantastic results in reef and marine aquariums. Our NEW proprietary blend of premium, low-dust pelleted carbon and high capacity ion-exchange resins are skillfully combined to create a superior all-in-one filter media in a nylon bag. Chemi-pure Blue significantly reduces organic compounds and phosphates while raising redox and helping stabilize pH for a healthy, crystal clear aquarium.