My Xenia has been doing great and growing from a small frag months ago. all of a sudden it turned dark purple and shed off all its polyp fingers. I did an iodine dip a week ago and now its gaining its fingers back but still very hurtin. I turned it 180 cause the flow was pushing it over and found a hole in the stalk with fiber like stuff sticking out. Also looks like the base is sprouting polyps, maybe the head is dying and it will regrow from the foot...... any suggestions?