Review on 🐠 HITOP 500W Aquarium Heater: Submersible Fish Tank Heater with Temperature Display for 100-200 Gallon Tanks by Sara Cassidy

I need this thing to work. I have freshwater shrimp in an outdoor aquarium in Florida. The device is delivered without a protective screen. There is no button on my device, you control the temperature by pressing the on/off button. The internal thermometer is not compatible with my tank thermometer. My thermostat says the water temperature is 71. The unit reads 74. Ok, ooooh, finally managed to start heating up.