I have had my tank up for about a year. I mainly have some soft corals with one lps and one sps. I live in NY and we have had some really hot weather recently. Since I haven't been able to invest in a chiller I have been running my AC for the past few days on high to keep my temp. at around 75/76.F with success. I have recently been informed about most people keeping there tanks from 79-85, with 82 being the average. I will share that my temp setting is out of J. T. book The Reef Aquarium I read about a year ago. I know that nothing is written in stone but before I break out with the heater I would like to know where some folks are with this.