I'm new to Techhui. Nice pics. I remember when Pat Takahashi was an evangelist on the approach you seem to be taking. I'd like to talk with you sometime. My interest lies in the lower end of the trophic web. I believe that open ocean ranching and farming will eventually produce the feed inputs for the commercial (your ahi) crops, although phyto-photo-krill-small fish production may be the finished product stream for some future operations.