Stunning 2 Scene Reversible Waterproof aquarium fish tank background for most 18-20" tall aquariums. Choose a length from the pull down menu. 

The repeating scene is cut from a bulk roll that is 19.5" in height with a 3/4" border on the bottom of both sides.  (Suggestion: Measure your aquarium from the top of your substrate to the bottom lip of the aquarium frame to determine if the background is tall enough for use.)