arrow crab questions

[fishguy4]

i have a 75g soon to be reef. is an arrow crab reef safe and does he have any foes non fish wise?

 

[benrock]

The one I had ate a bunch of stuff including an Emerald Crab, and hermit Crabs. I'd watch him close. I eventually sold mine back to a LFS.

 

[daniel411]

Originally posted by benrock
The one I had ate a bunch of stuff including an Emerald Crab, and hermit Crabs. I'd watch him close. I eventually sold mine back to a LFS.
I'll second that. They're very cool but like to/may snack on sleeping fish, snails, shrimp, small crabs, etc.

 

[fishphreak]

I have an arrow crab and he doesn't mess with my hermit crab or shrimp let alone my fish. but he does pick at the plants and stuff on my LR. I feed him frozen shrimp daily so that may have something to do with it.
My friend has one also and the only problem she encountered was that it was picking at her christmas tree worm so she started feeding him shrimp pellets and hasn't had any other problems with him.
I think the arrow crabs like to munch on corals.
Mine never did but I also had a cyano outbreak that killed them all. So it may just be that the cyano killed my coral before the arrow crab got a chance to eat them.