Cyano growing on shrimp?

My shrimp molted two nights ago... It is very decent size and produces fertilized eggs often, I have had it for a year now and it's very healthy. When I looked at it this morning, it has cyano growing on one of it's legs? It is also not hanging out in it's favorite spot... But It is underneath my frogspawn today. There is also a large bristle worm in the general vicinity of the cleaner shrimp. <-- this worries me a little.

What do you guys think?

 

That happened to my shrimp once then after a few days he was fine

i wish you luck