Need help with crab ID please

[Amy Dawson]

found this crab on my acro. I've been trying to ID him and can't seem to find a fit.

 

[helen ann]

Not sure but ...
OMG he is sure a cute lil' thing!!

 

[Amy Dawson]

Found another one with bright blue eyes. Hes been living in birds nest. Someone told me he lives on the Coral?? Idk because where he's sitting looks like he's scraping the polyps off the coral

 

[Amy Dawson]

Isn't he!!! Lol. I hope he's not bad for the tank

 

[saltyfilmfolks]

Found another one with bright blue eyes. Hes been living in birds nest. Someone told me he lives on the Coral?? Idk because where he's sitting looks like he's scraping the polyps off the coral

Should be cleaning them. An acro crab.

 

[Reefapprentice]

Looks like a Trapezia sp. Liveaquaria has a page with some more information. Personally never had a problem with them

 

[saltyfilmfolks]

https://www.reef2reef.com/threads/anniversary-present-gave-me-crabs.266908/

http://chucksaddiction.thefishestate.net/coral_crabs-6.html

 

[Amy Dawson]

That's def him. Thank you

 

[Salty1962]

Yep, Trapezia or Acro crab. I have them in my tank. Harmless unless they reside in a small colony not big enough to recover from the feeding habits of the crab. They like to feed on the mucus of the coral.