Wow! That's fantastic!! I really hope someone on the board is experienced with this to be able to help you.
What breed of seahorse are they? It depends on which breed they are as to what type of care they will need. (They could be pelagic or benthic.) The non-hitching pelagic fry would do best in a container that can keep them in suspension, like a bowl or one of those hex-shaped goldfish bowls.
In the meantime you could start up a batch of BBS and see if you can source out some rotifers.
Here are some links to try and help you.
http://www.seahorse.com/index.php?op...w=flat&catid=2
http://www.ultimatereef.net/articles/seahorsefry/
http://www.pbmas.org/board/index.php?showtopic=2304
http://www.worldofseahorses.com/raisingfry.htm
http://www.seahorse.org
Can we see some pics?
