what are these

[xtreeme]

I have two things on live rock I bought. Crab that fish store called philly red crab.
Old sony handy cam
Great site.

 

[xtreeme]

Live rock
The white round thing. The other is light green and purple things showed after few days.

 

[xtreeme]

Photos arent too good. The crab has small red claws, shell about 1" with smiley face mark middle, purple underneath.
The green on rock might be sponge? I have a duster worm so got phytoplankton. That is what spone eats since its filter feed?
Thanks

 

[xtreeme]

Im surprised. I figured someone would be able to ID the crab.

 

[nofish]

does it have point claws? or cupped?

 

[xtreeme]

Thanks NOFISH.
Really small claws hard to tell. Look pointed. He was hanging on LR other day think eating?