Originally Posted by misek37
I put my heater on 72, and my tank is still saying in between 80 and 82. It won't cool down and when my tank light is on it goes up a little bit.????
You shouldnt have the heater on??? Try leaving the bottom doors open to allow ventilation ...my temp stays at 78-79 with lights on. Chiller is set to go on at 80 degrees n I have 220 gallon