hygger 5 Gallon Fish Tank Heater

Product Features

• 1. Compact 50W/100W mini heater for 5-30 gal tanks, ideal for bettas and easy to hide
• 2. Auto stops/restarts at ±1-2℉ of set temp, red light indicates heating
• 3. Quartz glass heater tube, explosion-proof, suitable for FW/SW, 3+ years lifespan.
• 4. The waterproof heater, must be fully submerged and can be placed horizontally/vertically near water intake/flow.
• 5. Adjust temp 68-90°F ±2°F, with an integrated thermometer for easy monitoring.

Automatic shut-off and reactivation

Once you’ve set the desired water temperature for your aquarium, the fish tank heater will intelligently regulate the temperature. It will cease heating once the water reaches the set temperature and resume heating if it drops 1-2°F below the set temperature. The controller’s indicator light will be red while the heater is in operation.

Built-in thermometer

You can adjust the temperature between 68°F and 90°F with an accuracy of up to 2 degrees Fahrenheit. The aquarium heater includes an integrated thermometer to monitor water temperature, eliminating the need for an additional thermometer.

Durable quartz glass

This inline aquarium heater is crafted from heat-resistant quartz glass, offering superior protection against explosions. Suitable for fresh and saltwater environments, it utilizes white alundum sand as a heat-conducting medium, ensuring a service life of 3 years or longer.

Fully submersible

This fish tank heater is waterproof. It must be fully submerged in water when working. Place it horizontally or vertically near the water intake or the way where water flows.

Overheating protection

The 5-gallon tank heater will automatically shut off once the water temperature is over 90℉.

Directions for Use

How to Adjust the Temperature?

Rotate the knob on the temp controller to set it to your desired temperature. The temp range is 68-90℉.

Useful Tips

• 1. To ensure a safe and enjoyable experience, please carefully read and adhere to the user manual.
• 2. Ensure the aquarium heater is completely submerged in water at all times.
• 3. Mount the heater horizontally or vertically on the tank wall near the water intake or in the path of water flow.
• 4. Avoid burying the heater in sand or among stones.
• 5. Keep the temperature controller dry and away from water.
• 6. Do not connect the power supply until the heater is properly installed.
• 7. Allow the heater to cool down before moving the heater or changing the water.