Xenia are one of the few corals that have a constant pulsing motion. It makes them one of the most eye-catching corals in a reef tank. The purpose of their pulsing behavior is not well understood but the prevailing sentiment is the corals pulse to increase flow around the colony and maximize surface area for photosynthesis. Xenia are also one of the fastest growing soft corals making them a great coral for beginners on one hand but opening up the possibility of rapid infestation on the other. Despite their growth rate issues, they remain one of the most popular corals amongst reef aquarists in the hobby. One critical downside to Xenia is that they are known to ship poorly. We try our best to package them well, but be aware that they have a long history of travel issues.