I have a 2x2 cab. And i would like to do a sea of green but im not sure whats the best way to go as soil, hydro could i do a dwc with a 5gal with 2" or 3" nets sog and and just use one bin?'' or do i have to flush or would i be better off just using 2 liters with soil. Im looking to at least get 7Gs every week. .. Im just tryn to get the most out of my box.... Thanks