Urchin with a busted shell

[Yinzer]

What do I do about it? He has a 1/2" hole in his shell but is still alive. I have no predators in there. I am guessing he fell off a rock onto another?? Will he heel?

 

[Yinzer]

dead. His shell looks cool just sitting there though. The snails and crabs went in and cleaned out the carcass.

 

[NaClH2Opgh]

Sorry to hear that. Gotta love the clean crews though. I had a 5 inch leopard wrasse die in my sand and couldn't get to it. clean up crew devoured it in no time. My Nitrates and Phosphates never went up at all.