Need advice on nasty hitchhikers

[Wingin It]

I heard somewhere that if the claws of the crabs are pointy that they're bad.

[untamed]

I don't know where "RMH" is...but if it is near to Coquitlam, BC you are welcome to add all those critters to my tank if you get them out alive.

[MMAX]

I would guess Rocky Mountain House, AB. I had a hairy crab like you describe in your post and he was harmless. Never ate corals and he would take shrimp pellets right out of my fingers.