Microbe-Lift Sludge-Away naturally speeds up the elimination of slow degrading organic sludge and muck from ponds, especially which contain rock or gravel. This organic and microbial-based method prevents toxic gasses from deriving off of hard-to-reach accumulated organic matter, protecting your fish, plants as well as marine life while clarifying your water at the same time. Speeds up the elimination of organic sludge & muck 100% active, organic & microbial-based ingredients Protects your fish and pond from arising toxic gasses This quickly disperses & is safe for the environment 1 gallon of water treats a 500 gal pond for 5 weeks...