Check the listing for details. CrystalClear OneFix - Natural Clarifier. Condition: New. Listed at 34.99 USD. CrystalClear® OneFix™ utilizes natural bacteria to digest suspended dead organics to help keep the pond balanced and the water crystal clear. OneFix™ is specifically designed to start working the second it hits the water. Use once every two weeks when water temperatures are above 50°F. - Clears Pond Water with Natural Bacteria- Fast-Acting, Goes to Work Instantly- Safe for All Aquatic Life Routine Application Rate Apply OneFix™ every two weeks. For initial treatment of a new pond, double the application to seed your pond filter quickly. Persistent Problem Application Rate If a problem arises between routine applications apply OneFix™ at the prescribed rate every 3 days until pond becomes clear. For Best Results Apply OneFix™ directly into filter if possible or apply directly to the pond in an area of the greatest circulation. Optimal Water Conditions: pH: 6.5-8.5, Dissolved Oxygen: 5 PPM. Product Notices Do not use other chemicals while treating with this product. Item #SizeTreatsCC021-88 oz3,000 gallons / 375 gallons for 4 monthsCC021-1616 oz6,000 gallons / 750 gallons for 4 monthsCC021-3232 oz12,000 gallons / 1,500 gallons for 4 monthsCC021-6464 oz24,000 gallons / 3,000 gallons for 4 monthsCC021-1G1 gallon48,000 gallons / 6,000 gallons for 4 months