About Pulsating Xenid
Soft coral whose polyps visibly pulse open and closed — a hypnotic effect that's a hobby favorite. Easy under moderate flow. Like other Xeniids, it can carpet-spread, so isolate it on its own rockwork.
Heteroxenia fuscescens is a species of soft coral in the family Xeniidae. The species was first described in 1834 by Christian Gottfried Ehrenberg as Xenia fuscescens.
Notes from the editors
What it looks like. Soft coral whose polyps visibly pulse — opening and closing rhythmically. Polyps are larger and the pulsing more dramatic than Xenia umbellata. Color is typically cream-to-tan.
In your tank. The pulsing motion is the main draw and continues 24/7 in healthy specimens. Spreads aggressively across surfaces it touches; isolate on a separate frag plug or peripheral rock from day one.
Placement and care. Moderate-to-high flow keeps the polyps standing upright and pulsing actively. Low flow causes drooping and reduced pulse. Tolerant of nutrient-rich water — often grows fastest in newer or higher-nutrient systems.
Sourcing and feeding. Captive-propagated frags widely available and inexpensive. Photosynthetic with no target feeding needed. Pulsing intensity varies between specimens and lineages — buying from a tank where you can observe pulsing first reduces disappointment.
Care info is a starting point, not a guarantee. Individual specimens, water chemistry, and tankmate dynamics vary. Verify against multiple sources and adjust to what you observe. See our terms & disclaimers.
Related corals
Sources & attribution
- Taxonomy and accepted name from the World Register of Marine Species (WoRMS AphiaID 210004).
- Description content adapted from Wikipedia, available under CC BY-SA 4.0.
- Photo: no rights reserved · CC0 (via iNaturalist or Wikimedia Commons).