I bought a dozen berghia (6 for my tank) from Instar ~ months ago and so far so good. I dont think the average fish store worker could successfuly aclimated the nudis then remove them from the tank and get them into a transport container for a customer. Once you've sat with your hand in your tank for 45 minutes WAITING for a little 3/4 inch slug to crawl from a spoon to a rock you'd understand . If you want berghia just organize a group order (I may even get a few more for a friends tank). I do agree with Gary (and instar for that matter) that berghia are probably not the total solution and I will probably setup a separate tank for a longnose BF to take out some big ones on movable rocks.

--Erik