HCA: Hermit Crab Association

Since last week, my two e's have been running around in my glass food bowl. I know they aren't stuck, because i saw one running around in it, and turning around and walking away. It's a pretty funny sight, i would just like to know why they might be doing this. I do feed them, also.

I brung home two E's today, and they climbed on top of the hideaway thing. Well, one of the hermit crabs climbed on the other E, and...it made a sound. It sounded like this: https://www.youtube.com/watch?v=tFfWVVSnKyg It went on for a little, then the hermit crab on top climbed off and went to the s...

Well, just about 4 days ago i bought 2 purple pinchers. I got a 10 gallon tank with some sand. I have a water bowl with a sea sponge, and a little hideout spot. Well, my crabs either hide under it, or go to the nearest corner and do not move AT ALL. What is going on? Are they de-stressing? They are ...