Pond Boss Forums AERATION Should I aerate? my new aerator

I think what AP is saying will work, but pay attention to how deep the diffuser is placed. I think my problem was putting the diffuser too deep. Even tho the diffuser/aerator only ran when temps were below 70°, I think I mixed too much of the warmer upper water with the cooler water below, making the whole pond too warm for the trout - no cool refuge zone even tho it might have had enough oxygen.