Keep your aquatic pets healthy and happy with this submersible aquarium heater from Aqueon. With a power of 50 watts, it can heat up to 20 gallons of water, ensuring a comfortable temperature for your fish and other aquatic creatures. Measuring at 9.45 x 3.43 x 1.69 inches and weighing only 0.49 pounds, it's easy to install and maintain. This submersible heater is designed to provide a reliable and safe source of heat without taking up too much space in your aquarium. Whether you're a beginner or an experienced fish owner, this heater is a must-have accessory that will help you keep your aquatic pets healthy and thriving.