Thanks Stacy, yes, it was a relief to see them looking, acting and eating normal again as of last night.
Matthew, when I say the snails carried ich, I don't mean in the literal sense. Just that the ich must have been in the water that the snails were in. While I didn't dump the water into the tank, I didn't rinse the snails off either. So whatever tiny about of water was on the snails when they went in was the issue. Therefore I don't think a wrasse eating the actual snail would have changed anything in this situation.
On another note, with practically all the rock removed, it's shocking to see how big these fish have grown over the years. Looking at the tank now, I can't imagine putting any more rock in there! That 240g can't get done fast enough, I tell you!!