What wattage of heater?

[Josh Q]

I have a 10G and can get an 8" 50 watt or 8" 100 watt for the same price on sale. Which is best? Does it matter? Thanks.
-Josh

 

[Josh Q]

Anyone have any ideas/thoughts?
-Josh

 

[DizzyDezzy]

If it's a heater with a thermostat that turns off when the water is the right temperature, it really doesn't make that much difference. The 50 watt is the right size for your ten gallon, however if you ever want to set up a larger tank later on, you can get the 100 watt now so you don't have to get a more powerful heater later...