Can you catch the little frys and put them in a little separated breeder? Petco has a nice fry separator that works wonderful, if youre able to catch them carefully..
Otherwise if you cant catch them, provide them with places to hide... The only chance they'll have at surviving is if they are able to hide from the adults... unfortunately if youre not intentionally breeding them it can be hard to keep the frys alive. Unless the males and females are separated, your fish will continue and continue to breed... Frys will become a normal thing you see in the tank, and unfortunately they will continue to get eaten.. My advice is that if you are not going to intentionally breed them, you should maybe consider just having a tank of one gender..