Need some help with a heater!

[adcx64]

hey guys, so I've tried three different brands of the inexpensive betta heater, and all of them have some issues. Is it normal for them to fluctuate on and off? All three ive owned turn the water really warm for a little while, then the water returns too room temperature, then heats up again. any ideas?

heres the one I have now. http://www.aqueonproducts.com/products/mini-heater.htm

[shellieca]

Preset heaters usually are more trouble than they're worth. Does yours say its preset to a certain temp or that it keeps the water a couple degrees above ambient temp? I have a hydor pad preset (78F) heater that works pretty well but I only use it in rare circumstances for a 1g QT tank. I don't know how big your tank is but if you can get an adjustable heater you'll have better control & a more stable temp.

[Wutwut]

Originally Posted by adcx64

hey guys, so I've tried three different brands of the inexpensive betta heater, and all of them have some issues. Is it normal for them to fluctuate on and off? All three ive owned turn the water really warm for a little while, then the water returns too room temperature, then heats up again. any ideas?

heres the one I have now. http://www.aqueonproducts.com/products/mini-heater.htm

My heater fluctuate on and off. When the water temp reaches the temp i set it to on the heater, it would shut off. When the water temp lowers about a couple degree, the heater will kick in and turn on. I check my thermostat and the temperature stays constant around 78F.

[callistra]

What size tank do you have?