Temp taken at 1:00PM = 79 w/ standard old school thermo flaoting in my tank.

---------- Post added at 01:08 PM ---------- Previous post was at 01:05 PM ----------
Quote Originally Posted by jimsflies View Post
Controllers usually have a calibration setting for the temp probe. You can give it an offset based on the reading of a more reliable thermometer. As with most equipment, always calibrate it in the range you are operating (e.g., 78 degrees).

I'm not that familiar with the Reef Keeper does it maintain a history of the temp?
I don't belive it keeps a history in my current configuartion. You can hook it to your network and save a history of everything in their software but I haven't went through the hastle yet of getting a network connection to it in my basement yet. That is on my list of thinsg to do.

---------- Post added at 01:10 PM ---------- Previous post was at 01:08 PM ----------
Quote Originally Posted by chort55 View Post
That is a possibility, my sump is closer to the air duct, and has less pumps and alot less light and runs slightly cooler then my display (75.7 compared to 76.1 display) so with it sitting on the cool basement floor (or did you raise it I forget) and with the cooler air it could be a bit cooler then the display but I wouldn't think it would be a huge difference as long as you have a good amount of flow from the sump to the display.... as long as the temp probe is accurate anyways.
That is what I assumed that it would be pretty close b/c of the flow. You keep your display at about 76? Maybe I should lower my temp a little anyway? I've always kept it at 78.5 but maybe that is a little on the warm side.