Is this temp swing normal?

[jdeb101]

I'm currently in the initial setup phase of setting up my new Elos Midi36 tank. I just got the sw flowing last night and put a 200w heater in the display to get it up to temp. The 200w is temporary and the tank will be running a 125w once all up and running.

My concern is will the heater be able to keep up with the volume, as I believe I have low flow going through my sump, which is where the Apex temp sensor and my heater will be located. Just looking at the heater on/off cycle as it is now with the 200w I feel perhaps it turns on too frequently and takes a while to raise temp back to 79. Thoughts?

 

[Crabs McJones]

I'm currently in the initial setup phase of setting up my new Elos Midi36 tank. I just got the sw flowing last night and put a 200w heater in the display to get it up to temp. The 200w is temporary and the tank will be running a 125w once all up and running.

My concern is will the heater be able to keep up with the volume, as I believe I have low flow going through my sump, which is where the Apex temp sensor and my heater will be located. Just looking at the heater on/off cycle as it is now with the 200w I feel perhaps it turns on too frequently and takes a while to raise temp back to 79. Thoughts?

That should be ok. I use the JBJ truetemp controller and my temp swings from 77.5 to 79.5 over the course of a couple hours. Not sure if this causes any issues. I'm actually looking to get a cobalt heater to keep the temperature more constant and use the controller as a fail safe

 

[nautical_nathaniel]

~1 degree over a few hours isn't bad and shouldn't have any adverse effects on your tank's inhabitants

 

[Neo Jeo]

I have 2 cobalts. They stay within .5 of swings. They are really nice. They fixed the problems that they had in the past.