Heater for 100 gallon

[JamesW]

Hi all,

I've an urgent problem. I have two 300w hydor heaters and they happily kept my tank at 29c for the entire wisconsin winter including when I was away for a week and the house thermostat was set to 60f. Today I had a bunch of snails going for the surface, cardinals breathing at the surface and discus hiding. Temp had jumped up to 32c overnight. I unplugged my heater.

Ph 7.4 (no change)
Gh 11 (no change)
Kh 7 (no change)
Nh3 0 (no change)
No2 0 (no change)
No3 20 (no change)
Temp 32 (usually 29)

I need to replace the heaters with something more reliable. What are people's recommendation.

[discuspaul]

Get 2 - 300 w Eheim Jager heaters.

[gators111]

Another option would be to look into a quality heater controller and use the heaters you've already have.

[jim LI]

Another option would be to look into a quality heater controller and use the heaters you've already have.

+1 this is what i use https://www.amazon.com/Inkbird-Tempe...controller+306

[JamesW]

Ordered the inkbird. For that I plug the heaters into the controller and locate the probe away from the heaters and I'm good to go? After calibration?

[JamesW]

Petsmart down the street has eheim jagers so I'll buy one in case the heat controller doesn't work out

[gators111]

Yes. Plug them in and set them a bit higher than the controller. And then just dial in the temp you want with the controller.

[Jack L]

do these things have thermal cutouts to prevent overheating? or is it just that since is a dedicated controller, it should be more reliable?

[JamesW]

I'll probably end up getting the eheim jagers and using the controller. Redundancy never hurt anyone especially with some as critical as temperature.

Thanks for the rapid and detailed responses!

[discuspaul]

For what it's worth, I used Eheim Jagers for many years in discus tanks without a hint of problem.
Very reliable IMO.