Mini Betta Heater with Digital Display, 10W 15W Submersible Fish Tank Heater, USB Powered, Suitable for Aquariums up to 1 Gallon

Highlights

• Compact Size: This innovative super mini aquarium heater is "thumb size", perfect for nano tanks and betta tanks. Suitable for tanks up to 1 gallon, with a temperature range of 65-93F.
• USB Power Supply: The 5V/2A USB power supply ensures safety and eliminates the worry of electric shock to your beloved fish. (Power adapter or power bank is not included)
• Accurate Temperature Control: Thanks to the intelligent inverter technology and in-built chips, this thermostat maintains a constant temperature with an accuracy of 1F, surpassing traditional knob-controlled heaters.
• Overheating Protection: Your fish's safety is our priority. This fish tank heater automatically stops working when the water temperature exceeds 97F, providing full protection against overheating.
• Multiple Uses: Not only suitable for aquariums, this versatile heater can also be used for turtles, pet fountains, and plant seedlings. It is compatible with both fresh and marine water environments.