These affordable hoods fit most aquariums with top frame openings.
You'll love the fact that these affordable hoods also feature a sleek, modern design. They're made to fit aquariums with top frame openings. It is custom fit to sit on the inside lip of the aquarium frame, which prevents water seepage. A full length door provides roomy access in the front, and cut out sections in the rear allow installation of heaters, power filters and other popular accessories.The 16" size fits most 5 1/2 gallon aquariums; the 20" fits most 10 gallon aquariums. They are designed to use tubular 15 or 25 watt bulbs (sold separately).