Help identifying coral and crab

[Rodolfo Garcia]

my local fish store had a sale today and i got both of these for $5. I just didn't ask them for some reason what kind of crab it is , if it's fully submersible, is it reef safe , i just bought him cause i liked him which wasn't pretty smart. I also need help identifying the coral species. Any answers guys please. The crab is hiding and i really dont want to disturb him. So its a pretty tough pic to look at.

 

[Dr. Reef]

Coral is a zoa not sure what type, most likely for $5 it's the most common green zoa.
Crab is Ruby Red Mithrax Crab, reef safe and stays in water.

 

[Mike N]

Crab is Ruby Red Mithrax Crab, reef safe and stays in water.

I'm almost positive that isn't a ruby mithrax crab. They don't have eye stalks like the one pictured here.

 

[trevormass7]

If you want the zoas to spread I think they need to be on a rock

 

[Mike N]

I think the crab is a red burrowing crab (reef safe also):

 

[Rip Van Winkle]

Beauty eh?