Has anyone seen a peppermint shrimp like this?

[blakjak12]

does anyone’s else’s peppermint shrimp have a bump? It has molted 4 times over the last few months and you can see his lump in the molt too. Maybe just one of a kind birth defect?

 

[Tahoe61]

It's a parasite unfortunately.

https://www.reef2reef.com/threads/help-parasite-on-my-cleaner-shrimp.1102065/

 

[Privateye]

Definitely a parasite, but I've seen them live for a long time with these parasites. It's not a death sentence. I would only worry if you're keeping other shrimp you're concerned about.

That's a cool peppermint shrimp. I normally see Lysmata boggessi around here. That might be a wurdemanni.