45 gallon aquarium heater? 200 watts enough?

I have a 200 watt adjustable heater. Is it sufficient for a 45 gallon community tank? If not, what size you I need? I live in SC and it never gets very cold here. My indoor summer temp is around 71, average winter is 67.

Thanks! I've Googled and searched but only seem to find brand recommendations.

 

I am running a 200 watt on my 55 and it looks to be holding the temp right where I set it so I think it will be sufficient for your 45.

 

Yes 200w will be perfect for your tank especially being in a warmer climate

 

Hello Bet...

So a heater doesn't have to work hard to maintain a set temperature, you should figure on roughly 5 watts for every gallon of tank volume. Once heated, larger tanks will hold a set temperature better than small ones. Your 200 watt heater is a bit small for a 45 gallon tank, but acceptable.

Old

 

Thanks all! I haven't tried to setting it up yet to see if it will maintain the right temp. I think I have an old 50 or 100 watt somewhere I could throw in just in case.

Thanks again