Review on JamgoZoo Aquarium Heater Thermostat Submersible by Brooke Rogers

I bought 4 of these tanks when the heater shut off and the temperature in the tanks dropped sharply. He was able to keep my fish warm even though the air temperature had dropped to 50 degrees. (75g, 2x 150g and 240g) I bought 300W and 500W. The video I uploaded is 240 gallons. I usually try to avoid heaters because I have lost fish to malfunctions and electrocution in the past, but those with other brands don't have lid protectors. They look very well protected and worth keeping in my aquarium. I love how it tells me the current temperature in addition to the set temperature.