some LFS have lots of different saltwater hermit crabs, I like the brown legged because they are so active, they are always busy in my tank plus they are bigger then the blue legged so I can find them real well, the good thing is they can use the same shells as the land crabs, so I go to stores with land crabs and find bunches of shells and my brown legged switch homes all the time, everytime I drop a new shell in the go check it out! so make sure you have plenty of homes for them, they will be happy...and if you dont have enough for them to eat yet, mine love when I give them a freeze dried krill they hold on to it with there dear life, or strips of dried seaweed..