RC is right, Trout seem to be the dreaded pond Kryptonite to all things normal.

Is it naive to think aerating only the top 6-7' is keeping the thermocline or at least leaving most of that deeper water undisturbed ?

BTW, we are currently below 65 , we topped out at 71 today adn that was this weeks high so far. Tomorrows lows are suppose to drop to 48 at night.. It should really help relive some of the warm water for the time being. I'm not diving into the deeps yet simply because I know better than to trust MI weather.

With that being said would it make sense come October to run a complete startup again with one of the diffusers in the deep hole and run it through december before things start to freeze up ?

Thanks again, you all have been a huge help with my crash course in pond management.



1/2 acre 14' Deep. LMB, WE, YP, HBG, BG, Rainbows.