What are you guys keeping your tanks at during the summer? In the winter, my 120g was set to turn the heaters on at 77 until reaching 78. But now, in the summer, I don't cool my house as hard. So, my tank tends to start at a low of 78 and go up to 79-79.5 on occasions. Is that bad? Everything seems healthy and happy (fish and coral). Just trying to avoid turning my AC down a bit. I know I could increase evaporation and stir the surface more...