A mix of tiny foods will be good. Some folks have raised fry on ground up adult fish food. Cyclopeeze is a brand of high-protein engineered food animal.
brine shrimp are a favorite for all sorts of fish fry. You can see if your
LFS (local fish store. Preferred over Petsmart/Petco for this kind of thing) carries frozen microworms, or even breeds them for their own breeding program. They may also have specific fry food.
Given that you had eggs a couple of days ago, I'm guessing it won't be long before they hatch. I'm sorry that we didn't catch that these were likely cory eggs sooner. This leaves you with less time to get everything you need together.
Good luck and let us know how things go.
