Heater for 120 Gallon

[freshwaterfishlover]

I want to use a Pen Plex Heater for my 120 Gallon. I was wonder how much heat do you use, not what is recomanded?

[cocoa_pleco]

its 5 watts per gallon, so youd need 2 300w heaters. i like therma-flo and all0glass heaters. Stealths are best though

[gm72]

Ditto on the stealth heaters. I have tried many kinds of heaters but the stealth heaters are rock solid. My older ebo-jager heaters are also solid, but I like the idea of the stealth heaters being made of impact-resistant plastic.

[gm72]

Sorry for the double post, but I also forgot to add that the stealth heaters have a lifetime warranty.