I feed my babies twice a week.. 2 of my current month old hatchlings have been eating every 3-4 days. Twice a week or so is good for very young babies like that. I let mine decide when they're ready for a 7 day schedule.
Since BPs will almost always go off feed at some point, it's good to beef them up while very young.
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Snakes, Jeeps, Dragons, Nature, & Knives.. Makes my world go-round!