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!
Hydroponics is a great way for those with limited yard space to grow their own food. It’s easy to set up, and you will have little maintenance, no weeds, and little watering. I built my system, that holds 25 plants.
DIY Hydroponic Garden Tower Lets You Grow Over 100 Plants In Less Than 10 Square Feet
The basic configuration includes three bottles that act as plant holders, a bottom reservoir to capture/hold water, and tubing to move water through the system. It also utilizes a small air pump that uses water displacement to elevate the water up to the
15 Proyectos de efecto invernadero bricolaje baratos y fáciles “Break-Through Organic Gardening Secret Grows You Up To 10 Times The Plants, In Half The Time, With Healthier Plants, While the "Fish" Do All the Work.