Hmmmm LOL could be any of those.
Its touch identifying many cichlid species before they develop any marks or anything like that.
Malawi cichlids will have a brood and hide it among the rocks and before you know it you have babies all in the rocks.
My suggsetion is to just wait and see. If you have another tank you could move them and grow them out and reintroduce them later.
Keep us updated!