I dont know of any hyrdo systems where the roots remain "submerged". They are flooded, misted, or use a drip system periodically, but they do not spend 100% of their time in the solution.

I am completing my new grow room now, and I have researched both methods very throughly, and it seems that hydro remains the top choice among growers.

If you dont mind reading you can find 1000's of articles using google and make your own determination. It seems with hydro you can control exactly what the plants get, when they get it, and get in in the proper concentration.

Growing anything is all about the growing conditions, common sense tells us that. So, I do believe that you could more precisely control the variables using hydro. And, but being able to control such, you would normally expect a higher yield, and better quality.

Thats just the old fashioned common sense method of reasoning. I am not saying I am right, nor wrong. Hell, I dont know enough yet for all that. I am just looking at all things considered.

b0nger