I have 5 ball python hatchling that hatched earlier this month. They have all shed and been in 6 qt tubs for the past week. I offered them all live rat pinkies 3 days ago and they all refused. I breed feeder rats and want to start them on rats if at all possible. How big of a rat pup can 64 gram bp eat? And I also have a very tiny little guy who hatched from a collapsed roll out egg that's only 38grams and I am unsure if a rat pinkie is even smaller enough for him. Any advice or help is much appreciated!