Im looking to set up a top drip system probably about 2x4 with square pots to run as many autos as possible. I was wondering what the best size pot would be for an auto in hydro? I ran 3 gal soil on my last grow and the roots didnt use even half of the space. I'm looking to run hydroton in the pots have the pots in a flood tray that drains back in the res and recirculates. Thanks for the help 