My FT is a 300gal pond with around 30 goldfish. Check out my other thread "basement aquaponics". I've got the timers set for 12 or 13 hours. I get pretty good growth from kale, swiss char, baby bell peppers, tomatoes, basil, sage, thyme, celery, parsley, lemon grass. Other lettuces haven't done well for whatever reason - I think it probably has to do with shading. You can only get so much light to lower plants using artificial means.