Large well maintained acrylic 400 gallon saltwater aquarium. Tank is an IPI made tank, from MI. The acrylic is 3/4′ thick with solid stand with decorative bamboo covering. A 90 gal wet/dry filter comes underneath, circulation pump is a Japanese Iwaki MD-40RLXT. 150lb of coral sand with a combination of real and faux coral comes as well. 2 years old in perfect shape.