Yeah, just like A&M Aggie 04' mentioned, put it among the agressive corals like LPS or Leathers.
P.S. Ones you have that xenia in your tank and you wanna get rid of it.... it's almost impossible.
Propagation tip: You can torn pieces of xenia and attach 'em to the piece of rock with sewing string. Few days later when new polyps start pulsing just remove that string.
Good luck!!!