Very nice! I'm going to move this to the breeding section of the forum, or it will quickly get buried by other posts.
The hard part about breeding puffers (once you get a pair to mate without killing each other of course) is raising and feeding all those babies.
I know its a different species, but check out this article about raising arrowhead fry:
library/puffers-in-focus/suvattibreeding/
It might give you some ideas on what to prepare for when it comes to food and grow out tanks.. assuming they do hatch.
Basic egg hatching though, says if you see any fungus growing on them, remove the fungused eggs before it spreads to others. It looks like the parents are doing a good job of guarding and fanning them (water movement is pretty important).
Hopefully someone else will have better advice for you!