thats great sounds like they are being pros already, i just said that because a lot of first timers get upset and think something is wrong when their new parents eat the eggs so just wanted to make sure you knew that was normal and nothing to be worried about just in case, and couple days after they are free swimming you can feed by feeding with Hikari first bites or crushing up flake food, parents should also feed them by crushing up food and filtering it out through their gills to the fry, also refrain from cleaning algae off deco with new fry as they will also scrounge around and eat the algae