Bests & Worsts Reviews from Amazon

I now have 3 of these heaters. They've lasted me several months now and still work nicely. I keep bettas, and as any learned betta keeper knows, bettas require heated water and a minimum of 5 gallons. (Yes, that's true. Those pet store employees that sold you a tiny half-gallon bowl are wrong.) I tried a more expensive brand heater once and it almost cooked my swimmyboy. It's safe to say I'll stick to this heater for a while. I'll also note for anyone new to the hobby; heaters are not immune to malfunctions. No matter the kind, there is always a risk. Please keep a thermometer in your tanks as a second way of recording the temp in your aquarium.