Natural ponds rely on a healthy population of beneficial bacteria to consume nutrients that would otherwise support algae, aquatic weeds and other unwanted items. Easy to apply Orb-3 Lake & Pond Dry Bacteria leaves water fresh, clear and sparkling, while boosting the beneficial bacteria population in your lake or pond. The custom blend of select strains of beneficial bacteria in Orb-3 Lake & Pond Dry Bacteria are formulated to reduce the occurrence of cloudy water. Reduce sludge-generating organics. By accelerating the natural digestion of organic contaminate in both aerobic and facultative water bodies, Orb-3 Lake & Pond Dry Bacteria reduces excess nutrients that feed algae and muck buildup and allows water to maintain clarity and beauty. Best of all, this product carries the Orb-3 60-Day Satisfaction Guarantee: if you are not completely satisfied with your purchase simply return it within 60-days and we will gladly refund your purchase price. Dosing: Start with an initial dose of 2 tbsp. per 500 gallons of water or 3 pounds per acre-foot; thereafter apply 1 tbsp. per 500 gal or 1/2 pound per acre-foot weekly. To Use: Dilute each dose with a minimum of 1-gallon of pond water. Disperse product evenly over pond surface using a manual sprayer or trash/diaphragm pump. For Best Results: Apply when ambient temperature is 50°–90° F; dissolved oxygen level is over 1.0ppm; pH is 6 – 8; alkalinity is less than 100ppm. More dilution upon application will enhance product performance. Proper aeration is extremely important to maximize product performance. Never commingle with bactericides or quaternary disinfectants as they will degrade/inactivate bacteria. For a convenient liquid alternative try Orb-3 Lake & Pond Liquid Bacteria. This product is safe for people, fish and other wildlife when used as directed. For best results, use within 12 months of purchase. Made in USA.