Thanks for all of your responses so far. It makes sense to me about using fry if the GSH have no area to spawn in a new pond. When the plants catch up with the fish you would have an army ready to spawn.

Is there an easy way to distinguish between GSH and FHM when they are little? I think I have seen a few of my brood stock but I haven't positively identified any fry yet. Any tips would be great.