Microbe Lift PBL is a probiotic bacteria that consist of live cells which will rapidly reduce nitrate, ammonia, and odors caused by hydrogen sulfide gas. We have used this product to remediate ponds and stabilize filter for over 20 years. Microbe Lift PBL is an excellent product to help treat and manage toxic Cyanobacteria blue-green harmful algae blooms. Five gallons will treat approximately one surface acre of pond water with a moderate nutrient load.