I'll keep a close eye on things,Lordsoth,but so far so good.
My water is kept @ 22 celsius (71.6f )

I am not worried about total disolved oxygen in the water cuz i have 3000cc/minute of air going to each bucket,plenty of air.
My concern was not to raise water temp too much cuz you can get pythium and then things get bad.

At 22 celsius everything is cool.

QB