well for whatever reason it did not open up nearly as well in my tank as it did in the tank at the LFS.
lol Nice Perc, well just make sure when you cut the xenia that is in a controlled area. If just 1 little mm size gets out it can and will start a new colony. Many people do not like this coral since it can overstay its welcome. Myself I just cut off a stalk and rubber band it. In 2 days its started to attach on the rock.
Good luck