Breeding snails?

[Bradyloach]

Hey guys I was just wondering if anyone knew anything about breeding snails? At my local petsmart there's mystery snails and I was thinking about breeding them for cassie(my savannah monitor) right now I'm only feeding her crickets, night crawlers, with the ocational dubia roach. I don't know if anyone knows anything about this, but when my sav eats them, will she crush the shell? Or swallow it whole? Im going to buy 5 snails tomorrow and place them in a cricket keeper box. I don't think they need any flowing water so this would be good. What would I use for substrate? Would I even need any? I would feed them fish food, or carrots, something like that! How long would it take them to mature? Well big enough for cassie to have a suitable snack! Thanks everyone!

I know I posted on Herp center and Hedy helped me lots! Just wanted to get some info here to! Maybe even Daniel will help! Thanks everyone'