I am training my baby tilapias to eat homemade dough balls so when they are grown they can be caught with a fishing pole with a hook through a dough ball. Grandkids will love the fishing. Also experimenting with homemade fish food which will incorporate Moringa leaves into it.....more research on homemade fish food needed though.
Sounds like fun, lol
There is a group here called, http://community.theaquaponicsource.com/group/makingyourownfeed