Colony Polyp (akaZoanthus Polyps or Button Polyps)
Zoanthus Polyps, or Button Polyps are one of the hardiest and most colorful polyps available. This species is relatively easy to maintain, and easily reproduces on its own. Because of this, it is highly recommended that these polyps be given adequate space, as they are semi-aggressive and may crowd out other polyps and corals.
Photosynthetic, but needs supplemental additives such as trace elements, strontium, and calcium.