:  Xeniidae
Taxonomy: Alcyonacea: Xeniidae (Octocorals)
Body Form: Xeniids are unique in the corals with the ability to rhythmically pulse their polyps and tentacles. A colony consists of upright polyps with short unbranched stalks and feathered tentacles. Nematocysts are not potent.
Diet: The octocorals are generally polytrophic - getting nutrition from zooxanthellae (algae) in their tissues, nutrient uptake from the seawater, and feeding on microplankton.    Care Level:  moderate
Natural History: The Alcyonacea (one of the octocorals) include the leather corals, soft corals, map polyps, and gorgonians. Nearly all members live attached to a solid substrate by attachment via a holdfast. As a group they do not produce an aragonite skeleton but instead produce a protein and calcite that together cements the body together. Lacking penetrating nematocysts, these corals feed on tiny prey - bacteria, rotifers, and algae cells - that are suspended in the water column. They are found in areas without high wave action. Some species produce exotoxins that may affect the growth of other stony coral competitors.
Blue Cloves
Pom Pom Xenia
Pulsing Xenia
Red Sea Xenia