Review on 🐠 DaToo Mini Betta Flat Fish Tank Heater - Efficient 10W to 30W Small Aquarium Heater by David Rhodes

I've been using it for two weeks now. I do NOT recommend for a smaller tank, I have a 1 gallon tank with two tetras (for my kids) and I need to turn this heater off because the water temp keeps rising. It claims it stops at 82 degrees Fahrenheit, but I've read that my tank is at 91, the red heat indicator never turns green (meaning it won't stop heating). When the ambient temperature indoors is 66 degrees Fahrenheit.