Egg Setup..

So i have cory eggs..

I have collected them, put them in a breeders box which is attached to the side of the fish tank. A small filter has been placed next to the breeders box so that there is water flow in the box. The bottom of the box is filled with sand and there is a small plant for when/if the cory eggs hatch.. good idea or not.?

here is a picture of the setup