I have a 28 gallon NanoCube with 150 watt HQI MH. This puts out great light, but even with the fans, my tank goes up to 83 degrees. If I run the lights for 5 hours, have them off for 3 hours, then back on for 5 hours, I can keep it between 79.5 and 81.5. I was wondering if this cycle would be...