I've increased the bio heaven on these guys to see what happens, I also raised the lamps slightly because I was suspecting they where giving the two tallest ones, (11 inch pot 2 and 9.8 inch pot 1) leaf burn and I also transplanted them 2 to bigger 22 litre pots. Those coke bottles you see are DIY CO2 generators, they seem to be bubbling CO2 for all this past week. The other thing I've noticed is a 10%-15% increase in air humidity, but I'm suspecting the recent rainy weather has more to do with this than these " CO2 generators".
I think I'll also do some defoliation to Pot 1 and Pot 2 sometime during this week. Well it's two days until the new update but I've just taken the choice to top pot 1 and two, I know it's a little late but these technically where tester plants as I don't know if they'll end up being male or female its the first time I've done this and I was wondering what would happen I'll leave the defoliation when till later. 😑
@GreenISR, It ain't coco, and yeah if I keep the fan on the top dries off a little bit. As it hasn't been on for the this week its nice and damp right now.😉