Ram,
Thank you for all your knowledge and wisdom. As I said my friends were discussing this idea, having read it in a magazine somewheres and were wondering if it could truely work as it seemed kind of far fetched. One friend of mine raises just plants that way in his green house. It is quite a set up of tubing pipes of different sizes and floating bed trays. It is interesting to hear him talk about the set up.
So do you have just fresh water tanks or a salt water fish tanks? I know the salt water ones can be a little harder to maintain.
We had a small fish tank when I was a child, a very long while ago, with a few guppies and angel fish. In Florida, we had outdoor pools and tanks and a large lake, filled with fish and alligators.
