I removed heater from my 75g tank. With all the pumps and other electical equipments in my tank and sump, temp never goes below 80F. Day time it heats upto 83-84. I have mixed SPS tank. At what temperature i should start panic? I have freezed bottles handy just in case.
Well I did knock the heater down a notch and now the tank is stable at 80, I hope not to have a problem in the summer, I have 12000 Btu a/c that cools my second floor where the tank is located.