Heaters

[Brandon42]

how many heaters are needed for a 125 gallon tank?

 

[Brandon42]

Bump

 

[SATXBrian]

Looking at the BRS website, the eheim jager heaters, for example, call for 250w. The general consensus is to run 2 smaller heaters rather than 1 big one the help protect against over heating.

Find the brand you like and check the ratings to make sure.

 

[R eef]

Depends, heaters have different ratings.

Set up two for fault tolerance...

 

[Brandon42]

So do you guys think 2 200w would do it? I planned on having 2 but wasn't sure if I needed 2 300w or if lesser would hear the whole tank. It will be about 150gallon total water volume.

 

[Puffy_Sanchez]

I would go with 2-300 watts. I have basically the same setup and I can't get two of the eheim ones to heat the tank. Granted they are telling me that they are broken.