I live in Washington state where the weather rarely gets above 90°. I have about a half acre pond which at the deepest is probably 12 feet. I run an aerator 24 seven at about 8 feet deep. In July we had some rare temperatures over 100 for two days. We lost about 20 of our trout. My neighbor suggested just running the aerator at night when it gets that hot. He said I was sending hot air down to the bottom of the pond which is not a good thing. It seems like everything I read suggests running the aerator 24 seven. We hopefully will not have temperatures that high again, but if I do should I turn the aerator off during those high temperatures at least in the daytime? I am certainly no pond expert and can get overwhelmed when reading some of these posts. So if you can keep the answer fairly simple I would appreciate it. This is the first time we’ve ever lost fish so I know it was connected to the heat wave, just not sure if the aerator contributed to the problem or not.


Mary Davis