My 135gallon is running around 82* which is nearly 4* higher than room temperature. Lights on or off doesn't seem to affect it. If I open the glass top and the canopy it drops it to about 80. Short of turning off one of my filters or dropping the AC is there anything I can do to keep the water cooler? Is 82* too high for most tropical fish? Right now I am still cycling so it isn't too much of an issue.