water culture system!!!!
I recently purchased general hydroponics 3 part flora series hydroponic fertilizer and incorporated it into my home made water culture system. The system consist of a 10 gallon aquarium with a piece of styro foam floating on the top cut to fit 2 netpots filled with hydro rocks in the center. There is also a large air rock siting on the bottom of the tank filling the net pots with oxygen. I purchased the nutrients at a local hydroponics store and the man there told me that he has never heard of a water culture system and that most plants (especailly producing plants) cant grow in water like that because they would rot due to lack of oxygen. He said the the air rock is not really supplying any oxygen to the water. He then recomended that I turn my system into a aeroponics tank if I wanted to see any real results. He said the system im using is no better then soil. I would like an expert opinion on this and any help would be greatly appreciatted.