Premium Submersible Aquarium Heater for Tanks

25Watt Aquarium Heater: Perfect for Smaller Tanks

Ideal for Tank Sizes Suitable for aquariums ranging from 3 to 8 gallons, our 25Watt heater provides the perfect temperature control for small to medium-sized tanks. Choose the right wattage heater based on your tank size detailed in our size chart.

Temperature Range Adjust the water temperature effortlessly within the range of 68°F to 90°F (20°C - 32°C). With temperature accuracy of ±3℉, you can maintain the optimal conditions for your aquatic pets.

Built-in Thermometer Each heater comes with a Thermometer Sticker for real-time water temperature monitoring. Keep track of your tank's temperature at all times and ensure a comfortable living environment for your fish.

Safety and Durability Constructed with 2mm thickened quartz glass, 33% thicker than standard, this heater offers superior protection for both humans and pets. It is safe for use in both freshwater and saltwater aquariums. Its sleek design allows easy concealment within the tank.

Smart Temperature Control Equipped with an internal thermal sensor, our heater features automatic constant temperature control. When the water temperature reaches the preset point, the heater automatically shuts off; when the temperature drops below the set point, it will restart. This ensures consistent and precise temperature regulation.

Tank Care and Safety For optimal performance, submerge the heater completely during operation. Ensure the heater remains fully submerged while in use. Unplug the power supply when cleaning your fish tank or performing water changes.

Experience the comfort and security of a reliable 25Watt aquarium heater designed specifically for your small to medium-sized tanks.