Review on 🐠 Upgraded SZELAM Submersible Aquarium Heater - 100W Dual Temp Displays, External Intelligent LED Digital Temperature Controller, 2 Suction Cups - Ideal for 5-26 Gallon Tanks by Chelsea Hernandez

This is the absolute worst heater. I can't believe Revain is in that pose. I sent one back thinking it was just broken. It just doesn't match the temperature, not even close to the reported temperature. Beeps constantly. I have to increase the temperature to 93 to get to 78. That's not good, ps. It's only 90 gallons. I've learned my lesson. Order from an unknown seller