it'll pull round mate, they take a while to settle although your xenia doesn;t sound too clever> I had a tiny frag of that that did the same but when I bought a bigger one its been fine and grown over last 5 months. Pity you ain;t closer I;d give you a big frag of it. Although its classec weed its one of the best looking in a reef in my opinion always swaying and pulsing
I got a monti plate frag and its only just starting to grow. I saw a reefer last night who got one the same size as ours and after initial slow growth his is now about the size of a side plate looking great. can;t wait for mine to be like that