Redear don't always fare well in cold water. Perhaps they are stressed from the chilly temps.

In my opinion it's not a case of being too soon to start up the aeration, but I'm not sure it's needed at this point. I would think your DO is adequate right now.

Last edited by sprkplug; 03/26/15 06:26 AM.
"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.