All Glass Aquarium Co. - FLO DELUXE HOOD 20HEX BLACK. Our most popular hood is designed to perfectly compliment your All-Glass aquarium. It is custom fit to sit on the inside lip of the aquarium frame, which greatly reduces evaporation. They are designed to fit all major brands of aquariums. A full-length door provides roomy access in the front and cut-out section in the rear allows installation of heaters, power filters and other popular accessories. These hoods are available in a variety of sizes and in matching black, oak, maple and cherry trim styles.