Would a 10 watt aqueon heater be enough for a 5.5 gallon tank?

I was wondering if my 10-watt heater would be able to keep my glass 5.5g tank at a temperature of around 80 degrees farenheight, or at the very least around 76 degrees. If not, does anybody have any recommendations? Should I maybe get an adjustable heater?

 

I always prefer an adjustable heater just to be safe. I haven't dealt in heaters for that size of tank in a while though so I have no recommendations.

I had a non-adjustable heater malfunction on me once, the temperature kept crawling up. Fried all my fish. Couldn't figure out why they were all dying one day and then brushed the back of my hand against the tank and it was hot as all get out.

 

I was wondering if my 10-watt heater would be able to keep my glass 5.5g tank at a temperature of around 80 degrees farenheight, or at the very least around 76 degrees. If not, does anybody have any recommendations? Should I maybe get an adjustable heater?

I wouldn't recommend less than a 25w heater (though I've personally only used a 50w for a 5g). I've used 5 and 10w heaters for plastic carriers but they usually don't heat that well.

 

What is your room temperature what's in the tank?

 

I believe my 5.5 gallon’s heater is a preset 50w and it keeps it at 78-79 degrees. So a 10w probably wouldn’t work.