I've often thought about doing something similar but unfortunately I don't have the facilities here at school. I wonder how Dr. Alan Francis' gartersnake food would carry over to Nerodia? That's what I've considered trying. If you haven't seen how to make it, take a look at the link below. It's not a huge concern for me at the moment b/c I have a huge supply of free sunfish that I offer f/t to my snakes. I also feed live Rosies but this will not be practical when my snakes reach adult size. Well, keep us updated on how it works for you.