Usually in Aquaponics the fish are being raised in a seperate tank, fed fish food, and therefore creating waste that is rich in minerals that are conducive to growing plants. The key to Aquaponics is filtration and water quality. Somehow the solid waste from the fish has to be filtered out. I'm not sure what you are doing there but I am sure i'm interested. I'll follow this thread and see what happens. For plants try lettuce. Good luck!