Liquid and dry powder probiotic formulations are best for treating soluble nutrients and suspended organic matter in the water column. They are easily applied to lakes and ponds by spraying, pouring, or tossing the products over the surface of the water. Pellet probiotic formulations (MD Pellets) are best for directly targeting the muck layer on the bottom of lakes and ponds that contains nutrients and organic matter. They are easily applied by broadcasting over the targeted area in the lake or pond. All the probiotic products can be used as a standalone treatment or immediately following an herbicide/algaecide treatment to replenish the microbial community. They also all contribute to reducing nutrients, improving water quality, and enhancing water clarity. However, each probiotic product’s unique qualities should be considered when deciding which product is the best for any application.