Features EasyPro's family of water treatment products is designed to work together to achieve the natural ecological balance your pond needs to maintain clean, clear water. Sludge Remover Bacteria Pellets are designed specifically to remove organic sludge from the bottom of lakes and ponds. Sludge is the result of fish waste, dead algae or plant material, uneaten fish food, leaves, and other debris. The pellets, when introduced to the water, sink, dissolve, and begin to remove bottom organic sludge - often several inches per year. Simply toss Pellets in the water for easy application! Diminishes bottom sludge buildup Removes pond odors caused by stagnant water and decaying material Sinking pellets for precise and effective placement when spot treating Enhances water clarity and reduces murky water caused by organic wastes Helps lower oxygen demand in the pond Reduces problem causing nitrate and phosphates Fish, Family, and animal safe Ideal For Recreation ponds Aquaculture Farm ponds Golf course ponds Ornamental ponds Retention ponds Irrigation Ponds Wastewater ponds When to Use Every two weeks spring, summer, and fall Directions for Use For the best results Sludge Remover pellets should be added every two weeks when water temperatures are above 55°F. Cold water strains will have effectiveness in water temperatures as low as 38°F. Spot Treatments Apply 1 Scoop(8 oz.) per 1000-1500 square feet of beach, shoreline, or problem area every two weeks Full Pond Treatments Broadcast two scoops per 1/4 acre of pond surface every two weeks Avoid Using Copper based algaecides for 48 hours before applying. Parameters for Best Results Temperature: Optimal 75°F, Range 38°F - 100°F Dissolved Oxygen (DO): >2 ppm, minimum 1 ppm pH: Optimal: 7, Range 5.5 - 9.5