Tropicals can take the higher temps (esp. if you have enough gas exchange on surface), but a quick crank-er-up like that is gonna send them to the drink for sure. Fish chowda, anyone? Actually, so sorry . . .
Happened to me earlier this year as well. Turned my heater up too high, went to bed, and roasted my tank. 2 German Blue Rams and a Peacock eel didn't recover.