Just curious, I noticed that the stalk of my new leather coral looks like its "peeling", can't think of a better word. Or something maybe growing on it. It has not shrunk in it has been fully extended, I have noticed some clear mucus stuff come off of it, not sure if this is normal, I've never seen this with my leather in my other tank. I checked my parameters, everything is perfect, except my calcium being slightly low (400). I'm pushing about 4 watts per gal
. on lighting. Any thoughts?