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 * 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.