DIY Hydroponic Garden Tower - The ULTIMATE hydroponic system growing over 100 plants in 10 sq feet - This DIY Hydroponic Garden Tower grows over 100 plants in less than 10 square feet, by taking advantage of vertical growth space.
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!