One of my 4 month old Platy fry just ate almost FOUR shrimp pellets!!! None of the Cory’s or other fry even got any!!! Well, maybe not 5, bit she ate a LOT. Lol Sorry if the pic is too dark, but it’s obviously bedtime for the fish...
That’s what mine ended up doing. I wouldn’t feed her until she becomes less bloated. Can you try hiding the pellets from the platies so the cory can find them?
My neons keep logging out of the shrimp pellets so the cories can’t get them. Let me know what works for you so I can try it.