HCA: Hermit Crab Association

Sometimes crabs just do weird things like this. Maybe they dont like that shell? Lol. I'm not sure. I have no personal experience with this, but it's not screaming anything in particular out to me. The only thing I could think of is maybe one day you could upgrade to a larger tank? But that's all I...

Hello, I have 3 hermit crabs (2 small, one tiny) in a 20gal long tank with 6in of substrate (5:1 cocofiber/play sand). (Fresh and saltwater pools, both treated with zoomed and instant ocean respectively) Within the past two days they went from being very active to completely lethargic, just sitting ...

So I have 3 golfball-ish sized crabs (slightly smaller) and one the size of a quarter. (sizes including shell). One of the larger ones is in an iso tank molting. The rest are in a 20gal long tank with 2 pools (one large saltwater pool that they used to love, but haven’t really been using this past w...