What kinda of freshwater crabs can stay underwater?

Question

I have read up on Red Claw crabs and Fiddler Crabs, but the web seems to say they need to be able to get out of the water, but stores like petco and petsmart will tell you other wise. I am making a 30 gallon freshwater(renactment of oscean life even though its freshwater), Im wanting schooling fish, bottom feeders, crabs and some other types, Need help on the "which crab can stay in a water tank without needing to come up out of the water, any suggestion would be greatly appreciated, ty

Answer 1

no all freshwater carbs need air at some point so u should make something just 4 it so it can cliam up and get air

good luck

go here it well help

http://www.aqualandpetsplus.com/Bug,%20R...