I think I will order one just in case. I also had a fluval tronic heater that was in the same part of the sump as the reactor so that was dry but I just read it has a shut off built in that protects it. Which leads to another question. I had 2 heaters in my sump but of course when the water level dropped the display tank stopped getting heated water and the temperature dropped in the display. DOes everyone place a heater in their display or only in the sump?
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