[Carmen]

Originally Posted by JDigital

Wasn't it ME that brought over the probe?!?

As for the temp swing, that is odd. I had MH on my shallow cube (which you would think would fluctuate easily) with the controller keeping track of temp, and the controller kept the tank between 26.0 - 26.5C. Never needed a fan to keep temps in check.

Being that your tank is in the basement, MUCH larger water volume, external return pump.. etc etc (see where I'm going with this? ) What do you have the actual heater set at?

Ya, Josh it was you who brought the probe!

Ya I am going to get a second tonight to go over my program again and take a good look at the heater and such. So yours was set 26-26.5 then on the controller?
Doug too what is your heat program set to?
I think I had mine set to 26.0 to 26.5 as well? So I shouldn't see so much of a swing then right? Right now my temp is at 27.0. And lights only came on at 11:30am.