Zoanthus sp.-Rainbow Infusion Zoanthid is aptly named given its multicolor palette. The zoas feature an outer ring of speckled tentacles, followed by three concentric rings of pink, peach, and green. They are easy to care for, requiring minimal light and strong flow. As with all Zoanthid and Palythoa corals, great caution should be taken when handling these beauties, as many carry a potent toxin which can be life-threatening if exposed to the bloodstream.