I was at the beach last week and thought I'd pick up some new shells for the hermit crabs in my tank. The shells you buy at the shops on the beach are pretty nice and may look a little out of place in my tank, but I thought I'd try one at least. I stuck one in yesterday and this morning it already has an owner. You can see the new shell in the picture. If you look close enough you should also be able to see another hermit crab in his original shell.