Cleaner Shrimp getting picked on

[FLG]

I recently purchased a cleaner Shrimp to replace my last cleaner Shrimp of 1 year. Within a week the same thing happened to the new Shrimp as the previous Shrimp. He is missing his antennas. Like they have been cut/bit off. The only thing I can come up with is the arrow Crab I entered into the tank about 2-3 months ago. Any ideas would be awesome. Thanks. Tried to upload pic but wouldn’t upload.

 

[Eastlake]

It's almost certainly the arrow crab. They are almost completely intolerant of other motile inverts in the same setup, so much so that I've seen them reach into the shell of a hermit crab and rip it out and to pieces. If you're able to get the arrow crab out sooner would be better than later. Did you get it as a utility animal or just for show?

 

[FLG]

Just for show. I’ll get him out ASAP

 

[FLG]

Thank you!!!

 

[Eastlake]

No problem. They're really cool animals but they're just so darn territorial.