I took the temp again just now and its 79 so its pretty stable. I never really thought about that being high, but I guess it should be cheaper to keep it in the 75 to 76 range so as ling as evereything else is fine with it I will lower the temp w little and see what happens. I really don't have any other ideas. I did a 30 g water change the other day andchanged the carbon and gfo. Keep in mind mist of these colonies I grew from one head over 6 years so for them to go to **** now is weird.