All Tetra HT heaters come with red and green indicator lights. The red light shows the heater is heating, while the green one indicates it's on standby. The low - voltage thermostat keeps the water at a perfect 78°F for most tropical fish without any need for adjustment. It's crucial to pick the right heater for your tank size. A too - small heater may lead to under - heating. Make sure your tank has a hood or glass canopy to keep the heat inside. For your safety, all Tetra HT heaters will automatically shut off if an electrical short is detected. The HT10 features a built - in electronic thermostat to maintain the ideal water temperature. It's suitable for aquariums from 2 to 10 gallons with hoods or canopies. This fully submersible heater can be installed either vertically or horizontally. Its small size makes it easy to hide behind plants or other aquarium decorations. When you receive it, read all the label information. And don't plug it into an outlet until it's placed in the aquarium. Its dimensions are 3.34 x 4.11 x 8.89 cm.
Using your Tetra 50w Submersible Aquarium Heater is easy. First, make sure your tank is the right size (2 - 10 gallons) and has a hood or glass canopy. Then, place the heater inside the aquarium either vertically or horizontally. You can hide it behind plants or other decorations because of its small size. Don't plug it into the electrical outlet until it's in the water. Once it's plugged in, the red and green indicator lights will show you the heater's status. You don't need to adjust the temperature as the built - in thermostat will keep the water at 78°F. As for maintenance, regularly check the indicator lights to ensure the heater is working properly. If there's an electrical short, the heater will shut off for your safety. Also, read all the label information when you get the heater. This will help you use it correctly and keep your aquarium fish happy and healthy.
