New hermit crabs

Bought 4 new hermit crabs yesterday, 3 black ones and a orange one like I bought the day before. One black and the Orange one moved into the Red Sea Max, another black one moved into the frag/crab tank and the last one moved into the sump.

Black Hermit in RSM

Black hermit in the Sump

Here is a movie of the one located in the frag/crab tank.

I'm yet unsure about the specific species, but at the store they told me they are from the Calcinus family.

The hermit that moved into the frag/crab tank already had a hard time. The small red hermit I got the day before has no problems with the mud crab, but the new one got harassed right away. And also with the introduction of the second crab he immidiatly got bullied this morning. I now placed a frozen fish in it that I normally feed to the anemone, hopefully the crabs will take that for dinner instead of my little hermit.

Here is a movie of the mud crab with the hermit.