DaToo Small Aquarium Heater 50W Mini Fish Tank Heater 50 Watt Submersible with LED Temperature Display

Good heater that actually works and you can adjust with a good price, sometimes it goes over the preferred temperature but if u set it to 79 or 78f it's not gonna cook your fish 👍

You don't just press set to set the temperature like the directions say. you have to long press it multiple times until you set it like a clock by choosing the number you want. its only day one but the heater is working and its reading the same as my thermometer so far

Moderately priced fish bowl heater, but its adjustable, unlike most. Just perfect for a 3 gallon tank, my fish loves it. Quick and easy to setup, just click the adjustment button until your dedired setting. I keep mine set for 77 degrees. I have mine for a week, hopefully it lasts as long as my previous one 👌

I wanted a small beta tank heater that had a specific temperature setting and not one of those other compact models that simply warms the water a few degrees above your room's temperature. This heater actually allows you to set a temperature, and it only starts heating when necessary. There's a little red light that indicates it is warming, and the display always shows the current temperture. Then, it turns off when it maintains a desired temperature. It is very compact and able to warm my 3 gallon beta tank very easily and effeciently.

Works exactly as it says. I've tested the temp reading with a separate thermometer and it's accurate. only drawback is how thick the cord is.

I really like this heater. It's adjustable and visible in the tank. If I need another, I'd buy this one