Pom Pom Xenia Corals are popular corals within the reef aquarium trade. While they lack a colorful fluorescence seen in of corals, they make up for it with their tireless pulsing action. These corals pump 24/7 and never seem to tire. They also grow like weeds, so you need to make sure there is adequate room in your tank for them to flourish. More videos at http://www.reefvideo.net