Mine get live blackworms and frozen bloodworms. I never use freeze-dried worms for them. Mine won't touch flakes and stopped eating pellets once he had a taste of the good stuff.

Its my personal belief that they aren't as nutritious as the live and frozen versions and since both are readily available for me, I don't bother. Hubby uses them as a treat for his fish but I have heard too many stories about them causing problems when fed dry (and they don't seem to soak up moisture very easily - I've tried soaking them for over a day to no avail) so I won't use them at all on any of mine.