Hunter-
My tank normally runs 77-78 in the warmer months, and 76-77 in the cooler months. Never had an issue. At the beginning of July, our A/C completely crapped out. The house went to 95, and both tanks reached 91 for a few days, before the new unit was installed. Didn't lose any fish or corals...THANKFULLY!
kresDFW-
Thanks for the compliments!