I have a 75gl with a left side overflow (where I currently have my heater) and a 30gl sump where I have an Apex temp probe. The overflow is kind of a small area, but the majority of the flow so I was thinking that would be a great place for it but I'm getting a pretty huge discrepancy in temps.
Sump + Apex temp prob: 74.1 (yes... scary)
Heater in overflow: 80 (I'd like it at 79)
Any thoughts?
Sump + Apex temp prob: 74.1 (yes... scary)
Heater in overflow: 80 (I'd like it at 79)
Any thoughts?
. That said with an Apex you have the option for temperature alerts so this could be caught in time. If you didnt't have an alert system in place than I would keep one in sump and a one in tank during the winter for safety reasons.

