Aqueon Aquatic Flat Heater, 5 Watts

Aquatic Flat Heaters provide warmth for small tropical fish and are designed for glass or acrylic desktop aquariums at least 1 gallon in size, but less than 10 gallons. They are completely submersible, easy to install and efficiently warm aquarium water. Suctions cups are included so you can mount the heater to the bottom or side wall of the aquarium. - Ideal for small glass or acrylic desktop aquariums with up to 2.5 gallons - Fully submersible, vertical or horizontal placement using suction cups that mount to the bottom or side wall of aquarium - Quick and easy installation - Shatterproof construction