Crabby pants

I currently have 1 emerald crab in my 72g bow front. Is there enough territory in there to prevent a turf war if I get another? The current emerald pretty much has his lair set-up and he doesn't much stray from "his" rock.

Is there a different species that might be a good fit for my tank (see stock below)?

Just curious, I like the crab and wouldn't mind at least one more to look at. I love watching him put up his dukes when a fish comes swimming by. He thinks he is such a bad***. hehe

Thanks.

 

I have 4+ in my 180 gallon so you should be fine with 2 or more

 

Excellent! Thanks.