SeaClear 20 Gallon Hexagon Acrylic Fish Tanks offer a unique three-dimensional view. These tanks are lightweight, chip resistant, strong and resistant to leaks thanks to the smooth rounded corners and seamless front. Hexagonal Acrylic Fish Tanks fit well into corners and are perfect for those who have limited wall space available. The SeaClear Acrylic Aquarium is made with the finest cell cast acrylic on the market. Manufacturer's lifetime limited warranty.