Marina Clearview Background Adhesive is a revolutionary image-enhancing solution that seals aquarium backgrounds to tanks. The adhesive sealant provides a clean and secure seal without any bubbles, ripples or distorted light refraction. The result is a vivid, flawless, and clearly illuminated view of the background scenery from every angle. Better than tape, the long-lasting adhesive is easy to apply and remove for convenient background changes. Clearview is non-toxic and safe for use in fresh or salt water aquariums, as well as in terrariums and turtle tanks. 30 mL (1 fl oz)