I am also curious about the temps/turbidity conditions that we should start worrying about O2 depletion.
I have been seeing 85 degrees - 18" below the surface, out 25 feet from shore and 75 degrees at the bottom (7 foot deep - 25 feet from shore). My secchi readings have gone from 3 foot to 2 feet in the last few days also.
I'm only a couple weeks away from starting the aeration system, however, and my fish are acting just fine.
