Clear up murky water and cut sludge and odor with natural enzyme treatments that break down leaves, feed waste, and organic buildup. Safe for fish, plants, wildlife, and livestock when used as directed. Works in lined ponds, natural ponds, small lakes, and aquaculture systems, and pairs well with aeration. Use a start-up shock for quick results, then a weekly maintenance dose to keep water clearer and bottoms cleaner through the season. Biodegradable and made in the USA.