Are you leaving the larvae in the main tank? If so, there's the problem of the missing fry - its not the food source. I've raised clowns and its impossible to raise them in the main tank. The parents and any other fish will eat them. Check out Wilkerson's book on clownfishes - I imagine you could raise these the same way as clowns since they're both damsels.
Not sure if you're doing this already, it sounds like they were in with adults but you also mentioned feeding clown babies...
the rock was removed from the main tank. there were stow-away adults hidden inside that rock that i was unaware of though!!!! so that how they ended up all together. sneaky sneaky sneaky