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!
A great deal of men and women love aquascapes since they give us a way to experience a completely different world. Every aquascape needs to have a focus. The real key to any excellent aquascape is to begin at the bottom.