hygger ETL Certification Aquarium Heater, 50W/100W/200W/300W Submersible Fish Tank Thermostat Heater with Firm Double Pair Suction Cups for Coral Saltwater and Freshwater Tank with Thermometer (300W)

The hygger ETL Certification Aquarium Heater has received mixed reviews from customers. Some users have reported issues with the accuracy of the temperature settings, with one customer experiencing dangerously high temperatures that threatened the well-being of their fish. Another user complained that the included thermometer stopped working shortly after installation. The company's suggested solution for a separate issue was deemed unreasonable by one customer, who ultimately advised others to choose a different heater. On the other hand, some customers found the heater to work satisfactorily and praised its value for money, noting that it comes with a digital thermometer. One user mentioned that the heater's length was slightly inconvenient for their tank setup but appreciated the included thermometer's features. They also expressed understanding regarding the possibility of receiving a defective product, based on their experience with aquarium thermometers.