emerald crab misbehaving?

[AJ_77]

I have what was labelled "Green Emerald Crab" at the LFS. Tonight, after lights out, I watched it climb up the Colt coral and start picking at the closed-up stalks with vigour. It looked like the little beggar was pulling quite hard, almost yanking at the barely-exposed polyps.

I cannot discern any damage, but the Colt hasn't been quite itself, kind of smallish where it had been growing nicely.

Hmmm... Any experience with this or other similar crab irritating or actually damaging soft corals such as Colt?

Thanks,

Alan

[ 11 August 2002, 23:34: Message edited by: AJ_77 ]