Aqueon® Submersible Glass Heater 300 Watt 3.5 X 1.5 X 16.25 Inch

Aqueon Submersible Aquarium Heaters are perfect for both fresh and saltwater aquariums. These heaters are fully submersible and shatter-resistant, giving you long - lasting durability. They come with an advanced electronic thermostat that offers precise and dependable heating. You can easily adjust the heat settings anywhere from 68° to 88°. An LED indicator lights up when the heater is actively working, so you always know its status. There's also a built - in auto shut - off feature that safeguards your aquarium from overheating. Thanks to the suction cups, you can install the heater horizontally or vertically in a jiffy. With five different sizes available, you can find the perfect fit for your aquarium, big or small.

Using your Aqueon submersible aquarium heater is a breeze. First, make sure your aquarium is filled with water before you turn on the heater. Then, use the suction cups to attach the heater to the inside of the aquarium, either horizontally or vertically as you prefer. Next, adjust the temperature settings to your desired level between 68° and 88°. You'll see the LED light up when it's heating. When it comes to maintenance, turn off and unplug the heater before cleaning. Use a soft cloth to wipe it down gently. Remember, don't let the heater run dry as it can damage the unit and trigger the auto - shut off. Also, check the thermostat regularly to ensure it's working accurately and keep an eye on the water temperature in your aquarium.