Hi, you have reached a point of grow, where LOOOTS of leaves appeared . Defoiliation is a looong theme... andI do it like .. as much as needed. So i clean up their "feet" that means the lower 30 percent of the Plant. I take away all leaves and small shoots. This iam repeating until around week 4 of flower. Especially the small shoots that cannot reach the surface were cut. And anything else depends in the RH. If the RH goes to high for flower and i cant reduce it with airflow, i cut fanleaves. Those leaves transpirate . So my goal is to let the miost leaves on the plant , but taking away everything thatholds her back from developing big bus // or staying healthy( mold). So its always a question of growingstyle and setup. And so you have to find your Style that fits to you and your setup. More in the comments