Did they already lay the eggs? If so I would personally do nothing but just let them hatch and be eaten. Like Hockey said, raising clownfish fry is a very expensive and time consuming process and you wouldn't be able to get everything they need in time for hatching anyways.
The good news I guess is that if they've done it once there is a really good chance they'll do it again. If it is something you really want to do I would reccomend picking up a book such as Amazon.com: Clownfishes: Joyce D. Wilkerson: Books
for detailed pictures and descriptions.
Best of luck.
Btw, I am moving your post out of the archive and into the general sw
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