I and a fellow pond owner use bacteria regularly. I know that some folks do not think that it does any good but I will tell you my beach muck has totally cleared up and my water quality has greatly improved Aeration 24/7 seems to really help and keeps algae under control. Best year ever for our ponds. Some brands of bacteria work better for some people and not others.

"If people concentrated on the really important things in life, there'd be a shortage of fishing poles." Doug Larson