Heater nightmares!

O.K I'm going crazy! I have a 200 watt hydor heater and it's set on 78 degrees however it keeps turning on and my tank is at 82 degrees! I sent it back for a new one and this one is doing the same thing. In fact My ebo jagger was the first heater and it did the same! AM I cursed! Should i just set it at a lower temp and see if that helps? It's only a 29 gal. What can be the issue? It's not the lighting as the heater jumps on afetr the lights are off at night.
 

aquaguy24

Active Member
Maybe ur thermometer is off. I have the hydor theo heater for both my tanks and they work very well.
 
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