Pulsing Xenia

Xenia corals do not possess stinging cells or even a full digestive system, relying heavily on dissolved nutrients in the water. Often times new aquariums (under 1 year) and those with high fish loads or frequent feedings provide the best conditions. It also contains photosynthetic algae within its tissues. Colonies may grow and divide by fission, as often as every 2 weeks. The animal may crawl over surfaces with its base, or let go completely and float to a new location. It prefers to attach to rocks or glass in a vertical position, but may grow nearly anywhere.

Its pulsing behavior is not fully understood; colonies may pulse rapidly or cease completely, only to begin again later when conditions suit it. The movement may be based on feeding or respiration, as the coral lacks the fully functioning ciliary action that many other corals possess.

While Xenia corals have non-stinging tentacles, it is possible for them to release potent chemicals into the water which adversely affect the growth of stony corals; the use of carbon filtration (changed frequently) and regular water changes can minimize this. It has few pests aside from syllid worms. We recommend every coral be dipped before being placed in a display aquarium.

Pumping Xenia, or Pulsing coral, is a popular choice for new aquarists. Its charming appearance is enhanced by its mysterious habit of rhythmically pulsing its polyps, adding a delightful element to the reef. Its stalk is typically a light tan color with darker “feathers” on its polyps, which are held on branches which may be long or stout.

• Difficulty: Easy
• Growth Speed: Fast
• Lighting: Low - Medium
• Average Placement: Low - Middle
• Water Flow: Medium
• Temperament: Semi-Aggressive