I recently moved my xenia around the tank to allow for another coral I purchased, but about a week later, it looked as if it were just about dead. That area of the tank didnt have as intense a waterflow, so I ended up moving it back to where it was originally. Problem is, its still looking very sick and weak. The stalk used be a thick, healthy pink. Now its really thin and looks wrinkley...like old skin. It has been about 3 weeks and there is little to no improvement. Is there anything else I can do. Currently I am supplementing the tank w/ calcium daily and iodine weekly. Please help.