I was leafing through the Aquatic Eco systems Catalog and Tech Talk 114 caught my eye. The article is about using Hypolimnetic Aeration to increase DO without disturbing the thermocline.

This sounds great for a trout pond. Does anyone have any experience with Hypolimnetic Aeration?

I am thinking about using airlifts and some culvert to bring oxygen to the bottom (15' deep) of my 1/10 acre pond.