HALT!! Yes, you definately need to aerate the water body as a whole! In some cases you can do a section of a lake or pond if it is sectioned off, like a cove. In an eliptical pond/lake you would need to aerate the whole thing! We have seen too many examples of what can happen when you under-aerate a pond and none of them are good! You will actually make your water quality worse if you introduce enough aeration to mix the water, but not enough to get your oxygen levels up. Let a professional run some calculations and make an aeration recomendation. It is better to do nothing than to not do enough.
