FWIW, cage raising fish to grow them out sounds fairly easy, but it is far more complicated and requires a lot of attention, labor and care to get even moderate growth. It doesn't take much of a mistake or unseen problem to wipe out a lot of caged fish quickly. Not such a big deal for people that do it daily as part of the normal routine, but not so easy for others not accustomed to knowing what to do and look out for,
IIRC, HSB and SMB grow at about half the "free range" rate and lost growth is lost forever. Just be sure to figure that into the goals you are looking for.
