Subject: How do I build a small hydroponic system in a fish tank?

For a school project, I am trying to make a hydroponic system with about 10-15 
plants. I read your canning jar system directions where you also mention it is 
possible to grow plants hydroponically in a 10-20 gallon fish tank. Also 
mentioned in the answer at the beginning is the following:
"I have illustrated, written instructions burried in a file somewhere, but this 
will have to do for now."
I was wondering if you could post those directions so I could better understand 
the procedure and ensure that my system in a fish tank will work. Also, can you 
explain the nutrient solution, where to get it, and what kind to get.
Thanks for your help,
Lauren

Re: How do I build a small hydroponic system in a fish tank?