The Xenia that was on my live rock when I bought it had a little hole in the base of it. I finally got my new T5 lights today. A few hours after I turned on the new lights, I noticed that the little hole now has a little yellow bulge protruding from it. It was just a hold before I added the brighter lights. I found that this might be a bacterial disease for the coral but nothing else. Anyone have any ecperience with this?
Also, it appears that this Xenia has a tube worm that poked through its base. It that any cause for concern? (to the right of the yellow lesion)