Small Submersible Aquarium Heater,Adjustable Mini Fish Tank Heater 25/50/100/150/200/300 Watts with External Temperature Controller, LED Display, Smart Memory, Used for 1-60 Gallons (25W)

About this item

• Automatic Constant Temperature: 25W aquarium heater is specially designed for mini fish tank for 3-5 gallon, the heating will be automatically stopped when the set temperature is reached
• External Temperature Controller: Set the temperature via an external controller instead of submerging the hands in water and turning the dial
• Easy to Install: Thanks to the ultra-compact heater with powerful suction cup, it can be easily installed anywhere in the tank
• Easy to Read: The water temperature will be displayed on the external controller in real time, no need another aquarium thermometer
• Overheating Protection: Prevent cooking fish as overheating protection, stop heating automatically when overheating or lack of water