hehe I know- that's what guppies are for! hahha
Well I don't know this food specifically, but it is likely a protein based food to get the babies growing. If this is the case, I think that they would need some greenery after a few weeks- maybe a month. Maybe small piece of zucchini would help. I would try that myself.
I don't know much about cories, especially cory fry, but this would be my guess, and I figure it is worth a try right?