This is a funny one — under white light you might think it was a plain brown zoa. Then the blue lights come on and they’re covered with glowing yellow, orange, and pink speckles.
This is a really, really fast growing variety that absolutely requires high light to develop good colors.
Like all zoanthids, these like plenty of nutrients, and will thrive in a wide variety of light and flow levels.
The frag you purchase will come from the same lineage as the image shown, and will have a similar number of polyps, but because of natural variation among frags yours may not look identical to this image.