A while ago I reported that my Xenia was not looking that great. Its polyps were shrinking in both length and girth. After making sure my water temperature wasn't too cold I decided to start dosing my tank with iodine. I'm using Kent Marine Tech*I. I've been dosing with three cap-fulls every Sunday for the last three Sundays. I'm glad to report that my Xenia is once again living up to its full potential. It has a certain spring in its sway and is beginning to pulse again. I guess iodine really does work. I don't think I need to call a marine biologist if the polyps remain full for more than three hours though.