Well, I only found a couple dead this morning, but they easily could have been missed yesterday. I think I am dealing with more of a turnover event than sustained low DO. It was mid 90s for a week followed by a week of low 80s and one day with a high of 70. It was a great break from the heat, but that combined with the clouds could have been the right mix of problems. I think aerating will benefit my pond long term, I am still trying to figure out my system though.Also, it seems that aerating during the day would be best to mix the bad bottom water with as much DO as possible right?