About 20 Astrea, 20 Cerith, 10 Nassarious, 2 Fighting Conchs, 1 Mexican, 30 hermts (mostly scarlets), 2 Emeralds, 2 Peppermint, 1 Skunk Cleaner and 1 CBS all in a 92 gal reef.
My crabs are better behaved than the ones Golfish had, I have yet to see them kill a single healthy snail.. though should an Astrea fall on it's back... well, who could resist such a delicacy.