different medias, but here's day 21 pre-strip:
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Here's day 21 post strip:
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Here's about a week ago (don't have a pic from the same spot as of today):
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My point being, so long everything is healthy, and you approach it correctly, there's no impact. That last pic is a joke compared to what they look like today. Keep in mind, I'm in rockwool, with a fully dialed environment. Given your constraints, DO NOT GO AS HEAVY AS I DID. DO NOT GO AS HAVE AS I DID. I don't think I need to repeat that a third time. Defoliating in flower will have minimal impact if you're selective with what you take off. In my case, it had minimal impact simply because I'm in a system that is the equivalent of a top fuel dragster. Your mileage WILL vary if you try this, but I'm trying to prove a point. Be cautious, but don't be scared.