An all-natural formulation of pond bacteria that digests organic materials on a pond's bottom, thereby removing many of the nutrients that fuel algae blooms. Containing 11 species of beneficial bacteria and 7 types of enzymes, this product reduces plant nutrients in the water and releases carbon dioxide, nitrogen gas, and bound-up compounds. It also helps protect fish and aquatic life by reducing pathogens, eliminating noxious smells, and by improving water clarity. Includes shipping. 1/2 lb treats 40,000 gal. in larger pools, and 1-3 tbsp. treats 1,000 gal in smaller pools.