Defoliation of autoflowers

A very, very thick bush. Do I have to cut it again?

Hello friend, how are you? Yes, you should and can always remove those lower leaves. They're not doing anything, they're just in the way. My advice is to remove lower leaves until you see light at the bottom of the cabinet, brother. By the way, congratulations and good luck with the grow!

Yes, definitely, cut off all the underneath fan leaves not directly reachable from the lights. They are useless, but steal a lot of energy. Take in mind this: a plant has a fixed amount of energy that she can spend and she will use it as best as she can.