Decorator crab hitchikers

I recently got a decorator crab and It has alot of things on his back im still trying to figure out what it is. Also, those white puffs in front of him are left over fish I fed him last night. Has anyone ever had a decorator crab that cleaned itself?

 

Mine cleaned itself all the time, but it was a different type than that. Over it's shoulder there (your left looking at the pic) looks like a hydroid and more on the right both on the leg and in the background, looks like maybe some bits of red algae too. The 2nd pic there are zoas (center of pic), what looks like some kind of anemone on its foot on the left, and what looks like more hydroids on the right.

 

he looks like a walking live rock lol my scooter dragonet keeps landing on it thinking its a rock.