I then have two choices to make again. Choice one: Leave the spawn in Extratopia and grow them out over the summer and see how they do. If I go this way, I know that for the first week or so I will need to add really small food for them. After that, they should be able to eat the FHM's and other fry.
Choice two: Catch all the fry and release them in the big pond in the shallow end and let them survive on their own. The good thing here is the big pond is mature enough that it contains all the food they will need. But I would not know the results directly.
What about doing half of each? Leave half the fry in Extratopia and put half in the big pond?
