A short article about what can you grow in an Aquaponic system:
What Plants Can Be Grown in an Aquaponic System

"With aquaponics you can grow almost any plant you can think of, excluding, of course, plants that grows fruits inside the ground, like sweet potatoes, regular potatoes, onions etc."

I'd like to refute those claims as you change the style of beds to wicking beds , and can produce all of those ...
How to make a wicking bed http://www.youtube.com/watch?v=0zCJFolqLY4

sweet potato @ 10:00 on this video http://www.youtube.com/watch?v=qMUPAyIuN_I

since the bed is fed exclusively from the water from an aquaponic system , this one is a manual fed system , i have seen them limited by a float valve systerns, works amazingly... !!!
Peace and Love Dave oxoxox