The True Octagon is an eight-sided jewel: unmatched 360-degree viewing that`s distortion-free through seamless acrylic panels that catch and refract light into dazzling displays. No unsightly seam sealant or green glass cast acrylic is 40 percent bri ghter and clearer than glass and it`s shatter-proof too. Your fish will look eight times better. Maybe you should get a little octupus