Duncans (Duncanopsammia sp.), are unique LPS corals with big fleshy polyps. These hardy corals will thrive in a wide range of conditions, but grow best with moderate flow and light, and plenty of nutrients. Given enough time, these corals will grow into a bushy, branching colony.
These are large frags similar to the image shown here, with 1-3 polyps per frag. However, because of natural variation among frags yours may not look identical to this image.
Like all hard corals, this requires overnight shipping.