Small Aquarium Heater for 1-8 Gallon Tanks

This aquarium heater is designed for optimal performance and safety. The package includes a 5-foot power cord with a US standard plug, suitable for use in the US, Canada, and Mexico.

The heater's normal working accuracy is ±2°F, but its efficiency can be influenced by the tank size and ambient temperature. If you have a small fish tank or the tank is located in a high ambient temperature room, it's recommended to preset the heater temperature lower than your desired temperature. Conversely, if you have a large fish tank or the tank is in a low ambient temperature room, it's advised to preset the heater temperature higher than your desired temperature.

When using this heater for the first time, please take some time to monitor the water temperature changes and adjust the settings accordingly to create a comfortable and safe environment for your beloved fish.

To use the heater, first turn the red button on the top to adjust the temperature as needed. The red number displayed in the round circle indicates the set temperature. Next, place the heater upright in the water, ensuring the suction cup is firmly attached to the side of the tank for full submersion. Finally, plug the heater into the power outlet.

It may take a few hours, depending on the tank size and environmental temperature, for the water to reach the set temperature. Please be patient during this process. When it's time to turn off the heater, unplug it from the power source before removing it from the water to avoid dry heating, which could cause the heater to burst.

The heater is designed for intermittent heating. During the working cycle, the heater will operate for 5 minutes and then stop for 2 minutes (indicated by the light turning off). This pattern helps maintain accurate water temperature and a comfortable heating environment for the fish. There's no need to worry when the heater stops and the light goes out, as it will automatically restart after 2-3 minutes.

Regular maintenance is recommended to ensure the heater's optimal performance. Check the heater's working status regularly, and if you notice any unusual signs, unplug it immediately. Clean the heater's suction cups every 3 months using warm water (140°F) and allow it to soak for a while. If you find any soil or moss buildup on the heater, unplug it, wait 10 minutes, and then clean it with fresh water, especially the heating part.

To ensure the temperature sensor can accurately detect the water temperature, install the heater near the water flow or use a suitable water pump to facilitate heat diffusion. Always fully submerge the heater in water and avoid exposing it above the water line, as this could cause the glass and other parts to break.

DOMICA is committed to providing high-quality fish and aquatic pet supplies, including this Aquarium Heater with Digital Thermometer, Mini Fountain Pump, Wave Maker, Internal Aquarium Filter, Fountain Pump with Light, and Powerhead Pump.

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