unknown crab! need ID please

[vulkum]

i found this little guy in my live rock when i moved. i was tearing down my tank and he jumped out of the rock. hes way cool to look at but i heard all crabs are destructive so when i set my tank back up i threw him in the sump with a bunch of culupera. he came out of the rock todday and it looks like he has a little anenomia or something like that in his right claw. he wasn't eating it or anything like that but i remember seeing these cool looking crabs inside of a anenomia and he had these weird things on his claws. any relation and is he safe for my tank. i kindda like him in the sump that way i get to see him sometimes. any info anyone has would be great. (the pics are of the back of the crab so i could show his markings, plus he wouldn't turn around!).thanks vulkum

nullunknown crab

 

[Tide man]

Vulkum

Thats what Ive allways called a boxing crab (lybia Tesselata).
Thoes are annenomes on his claws he uses them as defence and to obtain food. He is an excellent detritavore a very cool find the store that you got your rock from probably ordered them and forgot about him.

Later

 

[vulkum]

thanks tideman. id like to keep him in the sump do you think he would be able to get enough to eat or would i need to add some food from time to time?

 

[reeflover1]

why keep him in the sump they are great reef
crabs i had to ay 6.50 a piece for them
they are GREAT

 

[Tide man]

He would have plenty to eat in your sump. If it were me I would probably leave him there just because you will be able to see him more often, its up to you.

Later