Would this 100W heater be overpowered for a 2g tank?

[hb1547]

http://www.amazon.com/gp/product/B00...ls_o06_s00_i00

I had this in a 10 gallon tank a year or so ago, and the heater worked perfectly.

If possible I'd like to use it in my betta's tank, but I'm worried it may be too powerful. Of course I don't want to hurt my fish.

What do you think?

[megaredize]

it might work but you should be able to find a 25 or even 50 watt for cheaper. I have 50 watt ones in some of my 3 gallons and they work fine but i prefer the 25 watt ones. i actually found it on amazon http://www.amazon.com/Hydor-THEO-Sub...25+watt+heater it is cheaper and a lot of people recommend them. they are adjustable and accurate. I have 3 now and trying to get more to swap out my 50 watts for these.

[hb1547]

The reason I'd like to use the 100W one is that I already own it and know how well it works, I'm just worried that it may be overpowered.

[megaredize]

oh ok well only way to tell is to try it. maybe you can try it in the small container that holds the same amount of water without the fish in it to make sure no harm comes to the fish. i see it is adjustable so if it is too powerful then you can keep turning it down till you get it where you want it

[babystarz]

Generally no, it won't be too much. I've done it in a pinch :) It will stay at the temp it's set at as long as it is fully submerged. I recommend attaching it so that it lies horizontally near the bottom of the tank; this helps the heat distribute evenly.

[Tikibirds]

It takes 5 watts to heat up 1 gallon of water - so 100 watts is way overdoing it for a 2 gallon tank. 100 watts is designed for a 20 gallon tank. That being said I have used 50 watt heaters for 5 gallons. Make sure you have a themomiter so you can keep an eye on the temp. Maybe set it to a lower temp so you dont fry the fish?