Breath-taking aquarium backgrounds boast unsurpassed realism Handmade and hand-colored backgrounds for exceptional aquascapes Simple and effective way to enhance the appearance of any aquarium Unparalleled realism instantly transforms your aquarium into a breath-taking habitat. Universal Rock Aquarium Backgrounds are natural-looking artificial rock backgrounds molded from real rock outcrops. Each background is handmade and hand-colored using crushed rock and sand – no paints are used! The result is a unique, three-dimensional background that offers a simple and effective way to enhance the appearance of any aquarium. Made with a revolutionary flexible, yet rigid, material for convenient installation. Use 100% silicone sealer for installation. Style Dimensions Olgas 72″ x 24″ Canyon 48″ x 24″ Shelf 24″ x 24″ Mini Crevice 14″ x 14″ Crevice 24″ x 16″ Crevice 36″ x 18″ Crevice 48″ x 18″ Wash your new rock background before installing into your aquarium. Please click on “More Information” for installation guide.