Came home the other day and girlfriend had the house like a tomb. Looked at tnak and noticed that ut was 84 degrees! I quickly kicked on A/C and killed the lights. What can I do to help keep it cooler inthe summer. I dont feel I need a chiller since it is only a 75 gal. Running 496W of light. Also opened sump cabinet to see if it will help. What is to hot for a tank and what do you run yours at? Please help quickly. Also wouls a couple clip on fans help?