Depends if there is now big size difference, no they won't eat them. If they're obviously bigger than yes. Like once i placed a month old swordtail fry with newly born fry And they were fine together. And wow congrats on all the babies! The most my swordtails ever had was 7 fry

v1 in which survived to adulthood. That's probably because didn't feed them live brine shrimp but fry food. Better survival rate i assume. Hope I helped somewhat!
-Dylan