Thank you Tony. I believe you are correct on their family history. They have adapted nicely to the new home and all are eating well. They seem to like FD blackworm the best. I have a culture of white worms arriving via post today and a daphnia culture midweek. The redworms are a bit too big for them now but it is funny to watch them try to swallow one. It remindds me of a child sucking down a piece of spagetti.
I hope your friend does really well with his as they are quite beautiful.