The New Reef Forest with Extension Kit takes open reef scaping to a new level.  The base, 6 arches, and 6 spacers stack quickly to give you a three-dimensional design with plenty of negative space and massive surface area for corals and other inverts.  It even has predrilled frag holes for easy placement.  Set up something incredible in minutes with no cements or glue needed!  The potential designs are nearly limitless, each scape is your own unique design.  Being modular, you can easily separate fighting corals and re-scape as needed, or just change things around for a new look.  In its full form, the Reef Forest with Extension Kit measures roughly 22 x 22 x 22.