mental1 - thanks, I hate losing them too. I'll get the live brine this evening, then slowly add in some frozen brine (enriched probably). See if I can get them over to frozen. Then they'll probably take quickly to other prepared foods.
They are in QT. There are only pvc pieces in there, so they don't have a choice on where to sleep. Maybe other owners can say where these fish like to sleep. Once they're all together in the 180, I'll let you know what they do.