Coral Beauty and Hair Algae

My Coral Beauty loves hair algae. Yay! He's really helping me get it
under control - he looks after the rockwork I do the sand. Several times
now I've seen him with humungous big poops hanging out the same colour
as the hair algae and today I think he was trying to get the Coral
Banded Shrimp to remove the poop that was about 2-3cm long and still
attached. He also tried helping me with the sand but the algae he picked
up had a few grains attached and it took him quite a while to get rid of
it. The fascinating part is he hangs out with my algae picker - a long
plastic thing with pincers on the end that I use. Whenever I'm picking
out algae he stays close to it. I'm not sure if he's jealous of all the
food the pincers are getting or wondering whether it is a good mating
proposition

I've had freshwater fish for quite a while but this sal****er hobby!
Boy! Talk about finding ways to waste your days away while you stare in
at the tank and then when you're not doing that you're reading on the net.

Oh and the shrimp which I only got 6 days ago moulted/shed it's skeleton
last night. How often do they do this? She seems fine and is eating.