Pond Boss Forums AERATION Systems questions Too much aeration too quickly? Fish stressed

Here in Northern Indiana we don't stock trout until the Fall and only when water temps have cooled down to 60°F. The trout survive until water temps hit the 70°F mark in late May to early July, depending on the year.

I have found that in my personal pond, aerating with the trout in the pond once the water starts to get warmer does more harm than good - unless the aeration system puts a LOT of O2 into the water, then trout will live even in mid to upper 70°F temp water. (Oxygen levels are as saturation levels).

I have tried the "only aerate when the night time temps are below 70°F" method and that has not kept the trout alive for any appreciable longer length of time than aerating 24/7.