Hi there, what are you offering them and how are you
hydrating them ? Most babies take about 2-4 days to begin to eat so they may be just about ready to eat any time now.
Hydration is also important, you need to spritz them with water 1-2X daily at least so they can drink the droplets. If you're using crickets, they must be no larger than 1/4 inch for hatchlings....put the crix in a jar or oatmeal container [ not a bag ] with a pinch of calcium powder, shake them up a bit so they are dizzy + slow, then drop them near the babies. Babies can be frightened by large amounts of fast crawling insects but are attracted to slower moving ones.
Can you post pics of them in their set up ?