Review on 🔥 Efficient Mini Thermostatic Heater: Elite 6-Inch, 50-Watt - Compact and Powerful Heating Solution by Will Moorehead

Bought two of these to keep my Beta tanks warm. One of them does a great job of maintaining the desired temperature (about 80 degrees) but the other was very sensitive; The smallest turn of the temperature dial causes the temperature to change between 65 and 90 degrees (which isn't great if you don't want to cook the fish). It's definitely the cheapest heater I've seen, so I guess you can't expect top quality, but for the most part it does the job well.