CC, do you have a thermometer? If so, would you be willing to do a test for me?
Take the water temp now with you only aerating at night to keep the pond cool. Then for the next few days aerate 24/7 and re-take the pond water temp at the same place at the same time of the day. Report your findings.
I will do something similar. I just got my electric bill after 24/7 aerating for several weeks, and I was a bit surprised at the cost. Also, the power company here (DTE) instituted premium rates between 3pm and 7pm. So, I will dial back the aeration to 12 hours a day (nighttime) and see how it goes.
I will report back on the temps, before and after.
