Zooanthid
Definition
Zooanthids are colonial marine invertebrates resembling soft corals, often colorful and found in tropical reef environments.
More on Zooanthid
Zooanthids are small, flower-like colonial polyps related to corals and sea anemones. They form mats or clusters on rocks, often displaying vibrant colors and glowing under blue light due to natural fluorescence. Though beautiful, some species contain palytoxin—a potent toxin hazardous to humans if ingested or inhaled as an aerosol during cleaning. Divers should never touch or collect them and should admire from a distance.
Frequently Asked Questions
They are soft coral relatives, part of the order Zoantharia, and resemble tiny sea anemones in colonies.
Yes, some contain palytoxin, which can be dangerous if inhaled or absorbed. Avoid contact.
They're common in warm tropical reefs, growing on rocks, rubble, or other coral structures.
Some exhibit fluorescence under actinic light, a feature popular in aquarium photography.
No, just avoid touching. The risk mainly comes from handling or scrubbing them on the surface.