Does anyone grow soy beans? Do they grow well in aquaponics?

My interest is because I'd like to feed my fish from things I can grow on my land. I believe that a lot of fish food (and for that matter other animal food) is made using soy beans as an ingredient due to its high protein content.

Assuming that they grow well, any suggestions on how to prepare them? I was thinking of trying just boiling them up and mashing them. I know my chooks like them like that (from bought soy beans).

As I am not on my land yet, and don't have any fish I can't try it myself.