aquarium heater

I need some opinions on what to do regarding my aquarium heater. I have a 3.5 gallon tank and the Aqueon 10W mini heater. My thermometer (which I’m not sure I fully trust, but anyway) says that when I leave the heater plugged in the water gets up to about 83 degrees Fahrenheit. It stays...

Dymax IQ Thermo Mini Heater   Summary   A reliable heater for aquariums 4-5 gallons and under. Easy to use and install, reliable heating and can fit in small spaces. The heater controller remains on the outside of the tank and is controlled with a button.   How long have you owned this product...