In reading thru this topic, I just tested the water temp. at 4' depth in my 3/4 a. pond, it was 40 degrees. Under these circumstances it sounds to me like I should turn off the aerator and restart it at a later date to maintain whatever warm waters for as long as possible?
When do I restart it? We have black crappie, bg, and a few lmb. I don't intend to move the aerator that is currently at 12'. But if necessary I would, to prevent a winter kill. We of course, get lots of ice in the winter and in the past have been able to keep a 6' hole open thru the -20 and -30 temps.
