I purchased 22 baby green tree frogs (hyla cinerea) for $40 bucks from a local breeder and I feed them to my two Stoltzmanni's once a week. I found the breeder on craigs list. They are pretty small but my frogs aren't very big. It provides for a balanced diet. I would try the baby chicks but I think they would be too big for my frogs. I've never fed pinkies but a random one on a rare occasion wouldn't hurt. I think the point with any frog is too feed as many different food items as possible. As long as that food item is something that they would eat in the wild. Other frogs are a main food source for larger frogs in the wild. We culture insects and worms why not other frogs for our large mouthed frogs?