Need help finding the best pot size for 4 Plants in a 1.5m2 Tent under 660w LED with Advanced Nutrient Feed

7 gal pots are great. the bigger the better really. if you can fit em in there, get em in there

I'd personally go smaller with more plants scrog style. And with a Coco grow, don't you need to be feeding to run off very day?

erm I would say very large lol think 100L or maybe 75L I have no clue about the size of the pots ive never used medium before but with my dwc they can grow ridiculously large. Larger plant support larger buds. in practice a plant can only grow as large as the medium its in Im doing 5 plants in 35L in a 1.25m space but I have alot of head height so yeah Im doing what you are chasing really large yields though I do also like all the flavours of high class genetics so im trying to do a trade off lol yield though its all about patience flowers will pack on the most weight in the last few weeks od growth and if your cropping at cloudy your going to be missing a hell of alot of weight strain dependant though as soom if left too long can cause you problems by self pollination ect. Im using a similar medium 60/40 coco and pebbles. mine is also in a self watering autopot system lol we have quite abit in common hehe best of luck anyway :) 👊