I have a few frozen mice left and then I wont be feeding them to my frogs. I have seen how feeder rodents are treated behind the curtain. The feeder mice are usually kept in poor conditions with a lack of nutrition. They eat some sort of dry pellet food and live in their own filth. For me I would rather raise my own food so I started a dubia cockroach colony. I am thinking of starting a colony of gryllus assimilis, but crickets are smelly and loud. I use nightcrawlers as well, but I have been unsuccessful at breeding them in CA. I feed my frogs a little bit of crickets and worms everyday. they are maintaining a proper weight right now and are very active eaters.