Review on 🌡️ Finnex Hang-On Electronic Controller Titanium Tube Aquarium Heater: Advanced Temperature Control Innovation by Kara Hall

Put this suction cup in my 150 gallon basement aquarium and it lasted all winter with no problem. I have two flaws that cost this thing a star. First, the thermostat and the numbers on the dial are loosely connected. If I set the slider to 80 degrees. I have about 68 in the tank before the thermostat kicks in and shuts it off. Okay, I can live with that and just add this thing, not having to constantly change something. The second is that the device is underground. For a device used in the water that I will be putting my hands in, a ground pin could provide confidence and peace of mind. Looking around, I don't see anything wrong with the ground prongs, though, so maybe I'm worrying for nothing. But when it comes to electricity and water, I'd rather not worry than not worry and make a mistake.