Looking fine to me.

Looks crowded but ok, if you lollipopped the bottom well it should be fine but hard to tell from that one pic.

You also have to move a lot of air around inside the tent. Do the majority of the leaves on all the plants flutter? Do they gently sway back and forth? In all parts of the tent?

Even with good humidity numbers little micro climates of stale air are possible without really good top to bottom circulation. Two fans inside, one upper and one lower at just above pot level pointing in opposite directions.

It's not just the leaves transpiring water into the air, it's also evaporating from your pots and you don't want that trapped under the canopy, so if circulation is on the poorer side right now, I would probably defoliate a little more.

Grownsince95 said:

Looks crowded but ok, if you lollipopped the bottom well it should be fine but hard to tell from that one pic.

You also have to move a lot of air around inside the tent. Do the majority of the leaves on all the plants flutter? Do they gently sway back and forth? In all parts of the tent?

Even with good humidity numbers little micro climates of stale air are possible without really good top to bottom circulation. Two fans inside, one upper and one lower at just above pot level pointing in opposite directions.

It's not just the leaves transpiring water into the air, it's also evaporating from your pots and you don't want that trapped under the canopy, so if circulation is on the poorer side right now, I would probably defoliate a little more.

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I have two fans opposite sides of each other but the bottom one maybe was too low so I’ll move it up a little. Most of the leaves flutter but not constantly. The humidity levels have been staying around 50%-65% humidity even with a dehumidifier it’s hard to get lower than that.

SlothMula said:

I have two fans opposite sides of each other but the bottom one maybe was too low so I’ll move it up a little. Most of the leaves flutter but not constantly. The humidity levels have been staying around 50%-65% humidity even with a dehumidifier it’s hard to get lower than that.

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I'm stuck in the same boat I can only add humidity or heat so when rh gets to high I raise the temp. 50-65 is fine though the run I'm on has been the hottest I've done in 20 years and going by VPD now the plants are loving life.

Grownsince95 said:

I'm stuck in the same boat I can only add humidity or heat so when rh gets to high I raise the temp. 50-65 is fine though the run I'm on has been the hottest I've done in 20 years and going by VPD now the plants are loving life.

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You haven’t had any issues with mold? That’s what I’m worried about the most is losing my whole crop just because I couldn’t get one simple thing in check. If you’re saying as long as VPD is good that’s great. Besides airflow and keeping a clean environment is there anything I can do to prevent mold?

Keep the swings in temperature to a minimum. PM likes warm dry days and cool damp nights. Control the one you can. Bud rot loves condensation. Gotta move air and stay away from the dewpoint.

I'm trying UVb at the end of the dark cycle on my current grow because im outside in a shed but I have to make it to the finish line before I can say if it works or not. It's definitely kept algae off the perlite so far

During flower as long as it's below 60% I'm happy. That's the threshold for PM and I never had condensation or bud rot indoors. So I raise the temp to whatever I need to keep it there.

This is the summary from the last week before I flipped. It runs pretty hot so the humidity is high but the VPD is gonna go up to 1.6-1.8 now and my humidifier will probably not even turn on again for the rest of the grow unless it gets really hot.