Donnie, I think what ewest might be saying is that perhaps you just have too many fish in the pond, thus making the aeration a failed effort.

Big difference between recreational ponds and aquaculture ponds.

I believe the general consensus is that Ted Lea knows his stuff, so there are probably other factors, and looking at the pounds of fish per acre is a good starting point.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."