I have leathers too but I'm trying to keep it small.
It was shedding too these passed few days. They looked closed and shortened.
(Finger Leather) Then yesterday it shed and opened up again.

What does everyone think of carbon?
Being into freshwater for years, I wouldn't use carbon because I had discus and other fish that were susceptible to hole in the head disease.
In my freshwater tank, I would only use carbon to get rid of medication.

Since I'm fairly new with saltwater, I'm not sure how you guys think about carbon.