The few things I've read about them, said they were one of the species that needed salt. The only reason for digging in the leaves for the earthworms is I can get tiny ones. I'm kinda wary about using farm raised worms , because I don't know the background on them. May have chemicals or something else I don't want to feed the little guys. Probably just paranoia though. I'll post some pictures tomorrow morning. I haven't been using the light because it freaks them out so bad. The pictures of them will probably look like black and white instead of color because they are scared. Any info would be great on them. They are indeed a trio of 1"-1.25" NGT though.