Thanks for the quick reply. I wondered about the depth, or lack thereof, in my ponds. If you are correct and there is little to no stratification, then am I correct to assume that I will see little to no reduction in the depth of muck over the years as the aerobic bacteria already likely have sufficient DO to do their work? Maybe I will consider a fountain aerator after all, but I assume those cost more in electric consumption. Is this correct, typically?
