I brought 5 4 1/2 gallon fabric pots and said heck there to small so went got bigger ones , wish I used them from the start, on the plus side the tiny little Unknown strain is doing shit, it's tiny and looks to be struggling to bang out the second wave of leaf and that's in black magic medium, won't but that again ....getting 2 purple autos ordered and Guna replace the tiny shrub with a purple auto in the smart pot. Other 3 are flying tho , every day I look at them they all look a bit different . It's a wonderful hubby thisI use fabric pots, they are filled with 1000's of tiny holes for proper root zone oxygenation. The roots grow completely differently, instead of circling they grow a brilliant mass. Look into them if you would like to step up production.