after 8 days the eggs hatch that is when you try to get them out if your egg are attached to a rock you can take it out and move it to a holding tank with an air stone and feed them rotifers it is hard to get them to grow but definitely worth the try
It takes quite a bit of prep work to get ready for this. The good news is there will be another clutch of eggs in two weeks. Google "Pickle's Clownfish Breeding Thread" its the best read on the subject.
Good luck,
Howard