Hey, I just wanted to put my 2 cents in for the benefit of others who might be interested in a commercial venture in aquaponics.

If you would like to get an idea of what can be accomplished in just hydroponics alone without the addition of the acquaculture end of it, take a look at this link and then imagine how many Tilapia this system could accomodate.

Open this link in a new Tab or you will leave the forum.
http://www.youtube.com/watch?v=FHBhyqowSEc

The possibilities are endless for a person of vision.