Thanks for the websites Dr. Joe. Its great to be able to actually see a few set-ups that are running. I only wish I had more room to make a larger set-up. I only have like 15' /15' but if I watch my spac that should be plenty of room. expesially if I keep the 55 gal. barrels up above everything and use gravety, then have the wet/dry filtation under the gutters. I think I have it figuired out for the most part. Im only worried about the lighting. Do you think I would be ale to get by with shop lights with grow bulbs, or would you upgrade to better lights? I have a friend who owns a trout farm. Im going to run my thoughts by him. He doesnt run the water through a hydoponic system. He just pumps the water onto his garden, but he knows alot about commersial filtration, and he might have a few pumps lying around, and a few ideas. What do you think about the lighting? What would you do if you were making this set-up - as far as the lighting goes? I am on a limited budget. Im disabled so I cant afford huge electric bills. But if the floresents wont work. I might not have much of a choice. Thanks for all your valuable thoughts and info............Dave