Green-Be-Gone is our own mix of beneficial bacteria and enzymes that work to break down sludge and fight algae growth in ponds. By strengthening the pond's ecosystem to eliminate algae naturally without the use of chemical algaecides that may harm your fish. Green-Be-Gone is safe for pets, critters, livestock aquatic plants, and even children when used per the instruction.This pond bacteria is exceptional when performing against cellular algae, commonly referred to green water algae due to it's "pea soup" like appearance.Available in Sizes:8 oz - Treats up to 2,000 gallons16 oz - Treats up to 4,000 gallons32 oz - Treats up to 8,000 gallons4 lbs - Treats up to 16,000 gallonsThese approximations assume poor water quality and are based on 4 treatments over the course of 4 weeks. Results may vary.Instructions:Apply 1 oz. weekly per 1000 gallons of pond water.For best results apply regularly during the spring, summer, and fall.Use when water temperature is above 50 degrees Fahrenheit.Measure temperature half-way down pond's total depth for best accuracy.Well aerated ponds with waterfalls or fountains greatly assist dispersion of bacteria and provide better aerobic conditions.