I talked to my local grow suplier witch is an experianced grower aswell and we talked about the American Deep Water Culture...
We really don´t get what the big advantage is when you compare it to rockwool or something elkse like Mapito. I started out growing on Mapito and Rockwool but stopped because of the better quality of growing on earth. I like experimenting with all kinds of soil bacteria and had good results with them... I´m never going back to hydrophonics.
Btw.. What is you´re havest per Watt I´m on 1Gram per Watt now :thumbsup: