Dead Emerald Crab?

[darthmatt]

I found my Emerald Crab dead today and I don't know why. I decided to break down my fuge completely so I moved him to the display tank, yesterday. The only things in my display tank are 5 scarlet hermits, 1 domino damsel, 1 red lipped blenny, and a queen conch. I am not sure if any of those killed him. Water parameters are fine. The only thing I can think of is as soon as he was placed in, he immediately started eating these white things. I am not sure if they are aiptasia or if they are poisonous. They only grow on the shady side of the rocks. Any ideas would be very helpful.
DarthMatt

 

[wablondie98664]

are you sure the emerald crab didn't just molt?? those white thing in the pic are q-tip sponges, they are harmless

 

[darthmatt]

I forgot about the molting thing. Does his shell come off in one full piece, or several pices? Becouse he looks whole.

 

[malounsbury]

I'm pretty sure they come off in one whole piece. A lot of times animals can molt their whole shells when they are being pursued by a predator to throw them off.