And by huge need, do you mean people ready to drop $$? If so, in what country? As someone who has been following aquaponics in America, it feels like it isn't nearly as popular here than parts of Asia and Australia.
I think that the market is made up of anyone currently eating organic, who lives in a southern climate, and would like to have a machine attached to the front wall of their house which produced fresh food for them with little worry or cost, and a lot of good feeling. My impression is that market is huge. It's the organic blogger mom market which seems to be a really big spender.
What it actually needs is light, and if outside, year around above freezing temps, so LA is WAY better than Seattle or Portland for it.