Cheers broyou will have to learn this as you go with experience, but I would start with lowers, its pretty easy to identify little branches and leaves in the undergrowth that dont stand much of a chance of receiving light. as for the top, looks like you've got the space you need, start by removing a few large fans that are covering other tops, I would not do much once you're flowering, I can also say these plants are tough and you could remove a lot more than you think (80+%) and still overflow your space depending on the strain.. anyhow good luck, they look great, and you really can't fuck it up when it comes to defoliation.
I am growing in coca and was told to keep the pots out of the run off ?Like the other guy said, remove the shit on bottom thats not getting any light. Otherwise, mostly leave them alone. Your plants are pretty good size for the space they are in and well spread out. I would recommend putting your pots in saucers to catch the runoff, you want to fully saturate your pots when you water. Water until you get some runoff and the pots will suck it right back up.
Oh thats a different deal i dont know anything about coco.I am growing in coca and was told to keep the pots out of the run off ?
Cheers for the advice though broOh thats a different deal i dont know anything about coco.