hermit crabs

I'm almost sure that my tiny (maybe red legged) hermit crabs are eating the coralline algae off my rocks. I had some nice purple patches developing on my dry rock and now they're completely white. I noticed last night that three crabs were all clustered around one little dot of purple. Also...

Reason why I'm asking this is because I was told couple different stories all at once. One person said that ONLY blue leg hermit crabs are reef safe Another said that all hermit crabs are reef safe and lastly another person said red leg can be hit or miss All 3 happen to work at the same LFS...

Hi guys, I’m so sad, my hermit crab was switching shells yesterday and this morning I found him out of his shells. He was still moving and trying to get into the shells, but now a couple of hours later he is not moving, he is just laying still on this position. I’m afraid he has died. Can...

Since starting my 24gal Biocube, I have had a total of 10 hermit crabs. I initially had 3 along with a blue tuxedo urchin and two of the crabs died off within a couple of weeks. Then I purchased 7 more along with 5 turbo snails. A couple weeks later we added 3 corals, followed by a Tongan...

Hey guys, so I’ve had 6 hermit crabs in my 20 gallon tank for 2 weeks now, and during the first days they where all right, moving around, doing stuff, but lately they’ve all stop moving and 3 of them have molted, at same time. I find this very strange, they all seem to be alive, but not moving...