You have to remove them or the parents or other fish will eat them.
Don't expose them to air.
You might find this interesting:
From Amplexus to Froglet
Put them in a tank with slow aeration and a heater. I had mine set at around 79-80F
When they first hatch they'll live off thier egg sac.
After they start to swim you should have infusoria ready for them.
You should also start to hatch baby
brine shrimp for them to eat as they get bigger.
I fed a combo of Frozen Baby Brine Shrimp (live are better so they can hunt them and they don't sink like fozen), Hikari First Bites and Ken's Pearls.
Clean any left over food with a turkey baster.