hermit crabs

Okay, this is hypothetical... My brother wants one of two things, a male super delta male betta, or a hermit crab. when he came to ask me if it would work, i fancy myself a fish expert, i took the diplomatic route and said to see into getting both. first off, can he? second off, if so, what does...

anyone got a hermitcrab :oops: , i do , and i wanted to see how many betta ppls have hermitcrabs along with bettas , not same tank , that would be disaster , he would drownd lol mine is juji:lol: and my sister got him on the beach for me so hes quite lazy and shy:oops: what about u guys , i...