I found a Crab!

[SharkMan]

I found a crab yesterday on my live rock and I don't know what kind he is. It was a dark color with some green spots. should I keep him in my community tank or give him the boot? Thanks.

 

[MT79]

Any chance of a pic for an ID?
Just about the only totally safe crab IME are the filter feeding crabs commonly found in anemones.

 

[melosu58]

Hey Sharkman , I moved this to a forum that might identify him. If you had a pic it might help the experts. If not maybe a better description like body shape and claw shape and size and any other info you might see.

 

[SharkMan]

I will try and post a pic when I can find him again. Thanks.