What is the correct temperature for my tank?

[CanuckReefer]

I run mine at the upper range of 81-82 since forever, which is I imagine not as common. My corals (softies) have always seemed to thrive under these conditions. Of course this leaves considerably less room for error. I did get up to 84 once or twice in summer over the years, ended up just running a fan over surface for a day or so, and things tended to come back into line although little to no stress witnessed on the inhabitants. Not sure if my higher temps assisted in the corals thermal tolerance with the brief spike or not? In my experience consistency seems to be the best thing. I've thought about lowering and or fluctuating a bit during seasons but have always elected to just keep it stable. If it ain't broke then don't fix it is my thought pattern...