Microbe-Lift/SA speeds the biological removal of slow-to-degrade organic waste matter from aquatic pond bottoms that may become toxic to fish and plant life. As organic solids accumulate on the pond bottom they begin to break down releasing toxic gasses to the surrounding environment. These gaseous byproducts endanger fish marine life and plants. Microbe-Lift SA removes bottom organic sludge and muck-reducing or eliminating the potentially harmful gaseous compounds-and helps clarify your pond water at the same time. May slightly discolor pond water for a short while. Rocks along the edge may darken but will return to their natural color.