Is this for a prepping food supply? If so, then you may want a self sustaining crop. Crabs and prawns will need to be refreshed periodically.
Fish are the easiest.
well, I wanted to stay away from fish, and try to raise some freshwater crayfish, shrimp, crabs, mussels as a edible food supply.
If that didn't work well, I would probably go with fish...probably coppernosed bluegills, they supposedly reproduce well in my area.
