Awesome pics!
Do what you like but that temperature thing suggested sounds like absolutely terrible advice; you do *not* want to fight the plants own nature, you will lose every time.
I have tried supplemental side lighting, has no effect on stretch whatsoever and just makes for a very hokey arrangement where you try to get more buds on the sides but not burn them etc. Pain in the butt.
Root binding by deliberately growing in a small container does *not* limit height to any meaningful degree in a small space, anyone suggesting it has never really tried it or their results were due to some other factor, I could trot out a lot of pictures of sativas about 5 feet high in a 250ml sized (1 cup) pot. Disregard that advice or try it yourself to see if you have the time.
Limiting feed to just enough and always avoiding too much nitrogen *will* make a big difference, that's your primary thing to dial in and you really really need to get proficient at that. Consider never feeding them "veg" food but only bloom formula food.
Do yourself a favor and learn how to scrog properly and you will be a very happy camper, nothing in my experience and many others compares, it give better yields in small spaces, easier to deal with the plants, more efficient use of lighting etc. It's a pain to learn how to do it properly but very much worth it.
Or do what I did and try every other conceivable method first until you realize you're just fighting the plant's own nature and scrog anyway. Your choice!
100w, 24 malawi in 1,4l, 60x40 - height over 1,20m, day 40
Its impossible to generate that in the same time with a scrog. impossible.
lets see what it will yield.
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