Sea View is a mounting and illumination solution for new and existing aquarium backgrounds.Sea View seals your background to your aquarium, eliminating the extreme refraction of light resulting in a flawless, illuminated, 3-D view of your background from every angle.Brilliant results that last for life of your aquariumEasy to apply and Easy to removeNon-Toxic Satisfaction guaranteedEach 1 oz. bottle will treat up to a 70 Gallon tank.