We actually are working on a case study down here in Florida where a 14 acre pond that had very poor water quality installed a undersized aeration system (not Vertex) and they killed not only every fish in the pond, but every creature that came into contact with the pond. We have all kinds of water quality data that should be ready to post soon... We properly sized the pond, installed more aeration and it is coming back to life. It will be a great case study for lake restoration and what happens when a pond aeration system is undersized. In the case of Ken's pond, imagine he has OK DO levels on the surface, but half the water has very little DO. If you just mix it up, then all the water has low DO levels. If you don't cirulate it enough (atleast one time per day is usually adequate)then you never get those DO levels up and you are just mixing bad water.
