What Temperature Do you keep your tank

[Coasting]

78-80 degrees normally

I noticed in the summer, between that massive heat wave we got at the beginning of the summer, and one of my heaters going screwy that my temps were hitting 86ish - 88, and my corals didn't look at happy, my fish seemed fine. LPS were kind of more retracted then normal. Went out and bought some AC units for the house, and unplugged the heater that kept heating, and everything looked happy again by the next day when temps were back to normal.