Please ID this Crab

[AtomHeart]

Anyone know what this crab is and what its behavior is:

 

[charlesr1958]

Given its body plan and claws, I would say that its a member of the species rich Xanthidae family and is not a suitable inhabitant for reef aquariums as they can be very destructive.
Also, that is one big Isopod you have there! Not something I would trust to be within the same tank as fish.

Chuck

 

[AtomHeart]

Thank you for the ID!!

Hehe...yea, my crab trap caught two isopods and both were almost 1/4" long. I dumped them in the refugium too. Do you think the crab will be ok in the refugium with amphipods, isopods, copipods, etc.? I don't particularly want to kill it.

 

[Sugar Magnolia]

As long as it stays in the fuge, then it'll be fine. They tend to be very destructive little buggers. I had one with a taste for snails.

 

[charlesr1958]

Personaly, I would get rid of the isopods as there is the chance they could reproduce and get back into the main tank.

Chuck

 

[AtomHeart]

Ah, good point on the isopods...hmmmm. Looks like another job for my handy dandy crab trap. Hehehe.