Cleaner shrimp lost tail

[SliderXC]

I am wondering if anyone has any idea how this could have happened? About a week ago I noticed that part of my shrimps tail was missing, he still moved around the tank this fine. When I checked this morning he had molted but now his entire tail is missing.

I only have 2 clowns and a tail spot Blenny in the tank with him, plus various snails. So I don’t think any of them are the culprit.

 

[Crabs McJones]

Did he maybe get a little to friendly with a powerhead?

 

[SliderXC]

Did he maybe get a little to friendly with a powerhead?

could be, poor guy