Review on 🐠 Adjustable Aquarium Heaters - Hitop 50W/100W/300W, Submersible Glass Water Heaters for 5 – 70 Gallon Fish Tanks by Kimberly Roemer

and it doesn't hold water on the right settings, you have to play around with that, so I've got it right now at 74, which pretty much keeps it between 80 and 82. ...which can be frustrating but for the price it works and I can't return it as I don't have another heater yet... But if you don't have a temp gun or don't keep an eye on your fish I definitely don't recommend this heater. I had very high expectations, I'm very disappointed maybe. They will contact me and send a new one, in which case I will change my rating. I will keep you up-to-date.