Atlantic Encrusting Zoanthid

About

Found on tropical reefs in the southwestern Atlantic, Palythoa variabilis is a zoanthid native to Brazilian waters, including the remote oceanic archipelago of Trindade and Martin Vaz. Like other members of its genus, it forms encrusting colonies of individual polyps that spread gradually across rock and substrate, making it a natural fit for the reef aquarium. The source data on this particular species is thinner than what you would find for more commonly traded zoanthids, but its beginner-friendly care rating and reef-safe status suggest it is a forgiving and adaptable coral. Palythoa zoanthids in general are well regarded for their toughness. They tend to handle fluctuations in water quality better than many other coral groups, which is part of why they appear so consistently on lists of good starter corals. Moderate lighting and flow suit this species, and it does not demand the precision that more delicate stony corals require. If you get your hands on a colony, give it a stable position with reasonable light and water movement and let it settle in. One important note that applies to all Palythoa: the mucus these corals produce contains palytoxin, a potent compound, so always handle with gloves and avoid contact with eyes or open skin.