Anthropic,
To better answer your question, I can now say it was from mixing deeper water. When I lowered the trim on the motor today, in just a few seconds I had debris and silt boiling up on the far side of the pond. Didn't think that was good to do for too long so I shut it down. That brief influx of current gave everything a good stir so the little bit of dead water should get some air.
I'm able to get the surface temp down into the high 80s consistently just stirring the top layers. I think a few seconds of deep push should be good in the long run. I may be wrong.


.10 surface acre pond, 10.5 foot deep. SW LA. The epitome of a mutt pond. BG, LMB, GSF, RES, BH, Warmouth, Longear Sunfish, Gambusia,Mud Minnows, Crappie, and now shiners!!...I subscribe!!