It's probably normal to molt that soon, do they molt just fine? I mean, if they're having bad molts 2 hours after they hatch that would be something to look into, but if they're molting well, I'd say it's normal.
I don't know what I did right, but they weren't really breeding for about a year, and now they're always berried. I haven't changed anything, they're in 2 year old Amazonia, no driftwood, no rocks, no decor, just wall to wall floor to ceiling moss. Doesn't even have a filter.