Transplanted from 1 gal plastic pots to 3 gallon fabric pots. I've never defoliated before so I did a light, medium and didn't defoliate the last plant. The idea was to see how much defoliation I can do without hurting the plant. I also did another round of topping.
Noticed RH dropping below 40%, added a cereal bowl with around an inch of water and a towel in the grow tent in front of a fan. Raised RH by 6%, added a second bowl, stable at 51% rh, buying a humidifier
Side note. RH was dropping below 40% when fan was on setting 2, assumption that the fan isn't sucking in enough air from outside the tent. Increased fan speed to setting 4, dropped temp from 75 to 74 and brought RH up to 55% after about an hour.