Mint Jelly - Humboldt Seed Co

Plants 1 and 2 have a bit slower growth rate. Plants 3, 4 and 5 look like they are starting to hook up. All seem to have that peculiar “leaf twist” that I sometimes see from tight internodel spacing. Some say it’s light or heat stress. I guess it’s possible but I don’t think so. I’ve seen it on several grows and it’s never been an issue. Running light intensity at 500 PAR and introducing Co2 slowly. Im now at a hourly avg of 700ppm. I know it is less efficient in a tent but I was gifted a large tank, regulator and controller from a friend whose father was a grower that passed away. So, at a fill, which lasts a month at 1000ppm, I will absorb the cost.