All you need is a small amount of vertical space around a balcony or an open window which can hang or store a vertical array of drink bottles that can grow all your herbs and lettuce easily. Recycle as many of your plastic drink containers.
Constructing aquaponics tanks is serious business. While we're working at Mediamatic Fabriek, we're acquiring loads of knowledge we can later share with people, enabling others to make their own aquaponics tanks.
Raise your own Tilapia. The species is well-suited to container farming. Tilapia are not only easy to breed, they are also very efficient at converting food and they grow quickly. Lots of tips in this interesting article.<OP Great for aquaponics.
you could add some fish to your water reclamation tank for a small aquaponics system. Grow a few plants to feed the fish and this forms a closed system. There is no need to fertilize, the fish do it for you! Permaculture at its finest!