Hitchhiker Black Crab

[Diane/Reg]

I found a black crab in my rock yesterday and I know I didn't purchase it. Looks like a pebble flat on the front dark grey to black. I have sea horses and I'm just wondering if its safe?

[dsaundry]

Rule of thumb, almost all crabs can be a problem, with seahorses I wouldn't take any chances, Get rid of it..

[Zylumn]

I have 3 different hitch hiker crabs in my sump and they seem to be doing fine.
Kevin

[michika]

Is it a shiny black/grey? If so, its evil!

[Whatigot]

I had a mean little bugger raise hell in my reef.
killed fish and coral and was impossible to catch until he/she'd gotten about the size of a toonie.
I will never ever take a chance with one again, soon as I see it, it's gone.
The one I had was a little black one too, beady red eyes and somewhat hairy legs...

[Diane/Reg]

How do I catch the crab? It is very fast and hides in the rock.