Auto pots it is....I run 9 5gal in each tent 4x4 and 5x5.....I think your right best way to go.....then I want 20 outside the tent....with 2 marshydro fc8000....the tents will be photos and on the outside in a basement in open area will be autos....idk I might buy a 8x12 for the autos so I can control their environment.....we will see....I've seen open grow with autos and still had great plants..but I like to control...also it would be hard to control the tents with them in the open.....we will see.....but autopots it is...would you run coco, living soil, or regular media....???