You're completely right about the square buckets. The ones I have are 1.5 gallon and I need to upgrade to 3 gal for flowering. You can put more square buckets in the same space than you can the round ones too.
Hey what up tOrn, just a little something for you to try. i used the 1.5gal white square pots getting just about an oz dried mostly from each plant, and i had 12 plants at each station(4 stations btw). well now i use .75 gal pots, i let the plants do about 8 weeks of veg, i add two weeks cloning and six weeks vegging after that, of which their last two to three weeks of veg are in the .75agl pots(you
must create a strong root system, not an alright or ok one), and then put them out to flower in that same pot. and with the smaller pot i was able to have 18 plants at each station kicking out just about an oz per plant, dried on most. but i have to feed about one time more per week. long story short im still getting the same amount per plant, but im using less coco: 12- 1.5gal pots=72 liters of coco, about a bag and a half=8-11 oz's dried. where as 18- .75gal pots=54liters of coco, just about a bags worth=12-15oz's. also i save on nutes because it would take about 2-2.5 liters of nutes to get a run off in the 1.5gal=24-30 liters, but for the .75 it takes just about 1liter=18 liters. less of everything else and about the same to more bud, cant beat that. thats when i fuond out bigger is not alwys better. but sorry i kinda drifted off a bit, but what i wanted to tell you is to get "1" .75liter pot and just try it out and see if it works for you. if not its one plant, but if it does work out like it did for me...............you can imagine the rest. when i get a chance i'll put up some pics of the two test babies i had. it was actually a two part test. test A was the pot size, and test B was one of the pots was being fed base A&B nutes with the booster i had been using(Gen. Hydro.'s Floralicious Bloom) andthe other with the base nutes and ATAMI's Bloombastic, oh man. but Monday when i get back in i'll post the pics. but hey just an idea for you to throw around before you increase, 1:medium cost, 2:nutrient cost, 3: amount of time it takes to feed, 4:the increase in humidity, and 5:the amount of coco to get rid of. Because those are at least five things that "will be" issues to deal with.
PEACE!!!
-ZEN-