Fiddler crab reef safe?

[MikeP]

I picked up a fiddler at the LFS tonight. I have not seen them for sale anywhere in town before. I just wanted to make sure he is reef safe.

Thanks

[fortheloveofcrabs]

I thought fiddler crabs were fresh water...?

[MikeP]

Thats what I thought but I guess there are about 90 species from fresh to brackish to marine. I saw some at one LFS last weekend and then at another (where I got this guy) tonight. I was told when I bought him that he is safe I just wanted to double check.

[Monti]

http://www.museum.wa.gov.au/dampier/explore_crustacean_fiddlercrab.asp

[MikeP]

That looks just like him but this one doesn't have the black carapace. Other fiddlers in the same tank at the LFS weren't red at all.