Heater Question?

[drew2005]

I think my heater might be on its way out. Its set to 79 and the last couple days my tank temp hasnt been under 82. Normally it hovers 79-81. I unplugged the heater and i had a fan blowing across the top and it lowered to 79. I plugged it back in and its rising again. I have a 150w heater for a 46 gallon. Is this enough? Should i go with 200w?

 

[ryanhayes9]

i think the rule is 5 watts per gallon

 

[ryanhayes9]

that equals out to 230. so you can do either a 200 or 250.

 

[drew2005]

Actually i just read somewhere that if the temperature int he room fluctuates more than 10 degrees either way then 5 watts per gallon is recommended. If it doesnt, then 2.5 watts per gallon is ok. So i guess im good with 150w. Thanks for the reply.