10 g will work for first month.
Once they are free swimming they don't need the parents.
After the infusoria they will do best on live BBS till they can eat large foods.
There are frozen BBS(Baby Brine Shrimp) also if you don't want to hatch your own.
Then you can move up to the hikari!
Congrats apistos can be good $.
IMO the pair will breed again shortly after they are re introduced so giving her a little break(keeping him separated ) is a good plan for a week or so.
Lets her build back up her strength for NEXT!!!!