its a good idea to sticky this. I am moving over back to organic again after trying chemicals on my last 2 grows. I will be using rabbits, worms, snails, and fish to grow my next harvest.

Right now my build is in progress and I have a 55 gallon rubbermaid container with tap water being aerated by 2 high powered venturi nozzles and 5 air pumps. The aeration is processing the water for impurities and after 4 days I added 2 cups of human urine, some worms, bacteria, and mud from a local swamp. The water is heated by 6500k flourescents which illuminate the water; the temps are in the high 70's. Once my bacteria starts to flourish and I can smell that nice indicative pond smell I will begin linking up plant containers and begin the organic process of growing.

Your answers can be found in the types of molecules that are available to the plants. Organic nutrients must be made inorganic before the plant can absorb them so there are varying levels of charged ions. This gets a bit complex and it would be hard to be as exacting in the amounts and proportions that the plant actually receives unless you have it in chemical form.