J&L had some a while back, not sure if they still do.
One of the biggest problems with the nudis is that once they have eaten all the aptaisia, they will starve to death if they aren't moved to a location with more aptasia. Apparently, they are quite delicate when it comes to moving and aclimatizing ( so I've read)

joes juice never works for me i have a terrible aiptasia outbreak right now tryed joes juice again and it just made them reproduce faster now i have a whole bunch of massive ones and hundreds of small ones. i have a friend who had the same problem and now has a copper band butterfly and now no more aiptasia at all