I was looking online and saw "Leopard Crabs" advertised as "FULLY AQUATIC" I'd really like a crab, but is there such a thing as a fully aquatic (no land access) crab? Any suggestions on crabs to look for?
There are fully aquatic freshwater crabs in the hobby. They're not hard to get if you know where to look.
...and I just realized how unhelpful that was.
Sign up for the forums at www.franksaquarium.com and ask the owner to see if he can order you some. He's gotten a few species before; the "Rusty Crab" that he gets most often is fully aquatic I believe.