Plants in veg are droopy in a weird way -- ideas?

I'm growing about 36 plants (AK-47, White Widow, Ice, Chyrstal, LA Woman, Afghan, Skunk, maybe a few others) in about 36 square feet of a 200' sq. foot room (see pics). It'll probably be a SCROG, but we'll see how things go in the next week. Anyway, most of them are three weeks into veg. -- and they're squat because I used too much side light in the first two weeks, while I was waiting for the big overhead light.

They're on a drip system, with a 1,000 top-of-the-line HPS (which should be a MH, but they sent the wrong light and I'm waiting a replacement). I have an oscillating fan cooling things. Temp at flower level during the day is about 85 degrees, humidity is probably too low at 40%, PH is stable in the low 6's. TDS is around 800-900ppm, using the Lucas Method with General Hydroponics nutes.

Here's my question:

When I go to the grow room during the afternoon/evening, the plants are are weirdly droopy. The droop is weird, because it's not lack-of-water wilt -- where the leaves wilt and go limp and look wimpy. Instead, the leaves of about five plants curl downward, retaining their strength and resilience, but making the plant look like it has a jacket of curled leaves.

The remaining 30 plants look okay, but still look 25% worse than when I go up to the grow room in the morning (after the 18/6 lights come back on).

See, in the morning ALL the leaves of almost every plant are fully extended, their angle is higher (toward the light), and they look FANTASTIC.

Is this normal? I'll post pics later . . . but I just wanted to get this question up -- because someone might now exactly what's going on. Like maybe too much light? Or is 40% humidity low enough to cause this?

TIA for any ideas~

~jessie
 

keico

Well-Known Member
This is normal, for plants, you have nothing to worry about.

As long as they look healthy, and not showing any signs of deformity, discoloration, or stretching, you will be okay.
 
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