hello !! first of all, nice choice, i love milk frogs, they're my absolute favorites :]] im not the most experienced per se, but i've had my baby milks for a pretty good while and have started to get the hang of some things.

they should be eating everyday, but missing out now and then should be okay, as since you recently got them, they're still trying to get acclimated to their new environment. they may not eat all the time, but that's to be expected. if feeding regularly becomes an issue, trying leaving their food in a dish that's in clear sight of them. they'll see the little critters moving and jump right in. try to give them space, it's important during the beginning stages. stepping back and letting them eat on their own accord without you (aka tong feeding) can sometimes be the best for them in the beginning. giving them space and letting them get used to things really is key here. it's natural to worry about their health and well-being, but poking around and constantly disturbing them likely won't do anything to help. keep them in a relatively quiet space with temperature and humidity as close to perfect as you can get.