My pond is approx 1/3 acre in surface area, it is around 18' deep in the center and is spring fed with no outlets or inlets. I have a windmill aerator that was just installed. The pond is 2 years old and was just stocked with fatheads and bluegill. I was just told that during the hot summer months the pond would stay cooler if cut the aeration to it and let the cooler water stay on the bottom as opposed to circulating it. Does this make sense???