I had to store my aquarium at my mothers house last year while I was in between apartments. I had no choice, it would have been either sell the whole setup or store it there. She only has window AC units and she would only turn them on when the house got to about 80. A few times when I came in the water was so hot that it was 'off the scale' of the temp probe in the tank and the water was 'hot' to the touch. I lost a black and white domino but my damsel survived. All of my coral survived too. This went through basically a whole corpus summer.

I put the lights on a 4 hour max cycle... the algae went totally nuts in the tank however. I am just now getting it cleared up from that mess and that was like 8 months ago.

Just from my 'stress-test' experience your tank can 'survive' short bursts of intensive heat but obviously will be bad on many things. I'm still glad I kept the tank because although I had zero growth through the period I still have most of the items and they are making a comeback.


ps. The blue and yellow damsel I named 'survivor man' because he is hardy as heck