rotleybutii, I'll stay up 'till midnight for frags!
jjakes24, I think conchs are slow-moving and will stay burrowing in the sand. My two have only moved a couple of inches from where I put them in, but I think they'll survive at this point.
Stix, I don't know about empty shells, but I did get a little bonus surprise. The one cerith that I thought was really active...was a hermit in a cerith shell!
As for the rest of the ceriths, they were slow to the dance but a lot of them are up and partying. Still have 30% of my 69 ceriths on the sand, so it may be another day or two before we do the body count, but I'm hoping most of them will come around.
Ribs, you had the big order for ceriths, how are you making out?