Is Heater Too Big A Problem For Qt?

ASHLEY R COOK

Member
I am currently using my old heater from my 37 gal tank for my QT since I have it already but it's a 200w and my QT is a 10gal. Is that dangerous? Should I go buy a 50w?
 

TexasGuppy

Member
The only potential problem is if it 'fails' in the ON position, it will cook the fish alive very quickly. It's rare, but it has happened to heaters before. A smaller heater would give you time to realize it climbing without killing the fish.
 

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