From Wikipedia, the free encyclopedia
Xenia is a genus of soft marine coral resembling a mushroom, with "arms" coming out from the top that end in many-fingered "hands". It is unique among corals because of its ability to "pulse" or push water away from the colony with a constant motion. This action is thought to be used for respiration. It propagates well with marginal care and is very suitable for beginning reef aquarium hobbyists. Sally Lightfoot Crabs may clip arms from a Xenia causing it to emit a mucus. This mucus will very likely induce a bacterial feeding frenzy that will kill the Xenia.
