hey Meg, I have a Luna too.
she is a leucistic.
Anyway, back on topic. lol, Don't worry, if Gimpy hasn't started eating yet she will soon. And I'm betting Luna had her first shed already and that is why she is eating. I haven't caught all my hatchlings in their shed but I know they have when I find their first poop that comes after the sheding.
Then I know it is time to feed them. Usually my leos shed by day two but I did have one last year that took 5 days before she shed. Now that was panic since her clutch mate was eating 3 days prior to her shed. lol.
Good to see you are a little paniced, that makes for a great mom.
Good luck with them.