Arrow crab and emerald crabs together?

[vicdiana]

I'm planning to buy 1 arrow crab and 3 emerald crabs. Can't I have them together on the same tank? 265 gallon tank, 3 years old. Thanks

 

[freak man]

I have a arrow and emerald together with no problems, in a 55.

 

[draconis321]

The emeralds should be fine I have 1 of each and nothing happens the thing with emeralds is that their almost alway hiding I've had one for 2 and a half months now and I've only seen it 3 times I suggest if your going to spend that much money to buy something your going to see.