Microbe Lift PL Beneficial Bacteria for PondsEcological Laboratories Microbe Lift PL for Ponds is a special formula for decorative fish ponds, lagoons and small water features. Microbe Lift Pond PL with natural beneficial bacteria will help create a cleaner environment for your pond and help promote fish growth. Keeps ponds clean and clear Reduces ammonia nitrogen levels Seeds and maintains biological filters Breaks down dead algae and gets rid of organic sludge Reduces noxious odors from dead