Leather Umbrella Moulting?

Dragonet

Medium Fish
Mar 19, 2009
58
0
0
Kingston ON.
#1
I'm relatively new to the saltwater world so I don't know alot about the life cycle's of leathers.
Every once and a while my leather umbrella will retract it's tenticles and moult a layer of skin and then come back out and is fine?
Anyone who knows what this is please let me know.
Thanks.

Liam