Could this be due to the cold?

[SnickleFritze]

Hi guys, these have been doing great till last night! Checked this morning and there all droopy ?! Only thing I did last night was put the cold outside air feed close to one of the passive vents of tent, minimum temp on thermometer was 13.2c !! But I have lights on 24/7 and it's steady at 24c with a cool tube so not sure what's happened [emoji85] maybe it was just too cold ? Could this cause the schriveled up droop ? [emoji111]

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[Renaissance Redneck]

Hi guys, these have been doing great till last night! Checked this morning and there all droopy ?! Only thing I did last night was put the cold outside air feed close to one of the passive vents of tent, minimum temp on thermometer was 13.2c !! But I have lights on 24/7 and it's steady at 24c with a cool tube so not sure what's happened [emoji85] maybe it was just too cold ? Could this cause the schriveled up droop ? [emoji111]

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I can't see the pics, but 13c is getting pretty cold, especially if your gals aren't used to it. How close are your lights to the canopy, and where are you taking your temps? Cold air sinks, and it could be your soil temps took too much of a drop and caused some stress.

 

[SnickleFritze]

I can't see the pics, but 13c is getting pretty cold, especially if your gals aren't used to it. How close are your lights to the canopy, and where are you taking your temps? Cold air sinks, and it could be your soil temps took too much of a drop and caused some stress.

They are very droopy but not like under/over feeding, more shriveled up.

I'm growing in coco, feed is at 18c ph 5.8-6.2 ec 0.9.
Lights are 20" away dimmed to 400w @ 24c at canopy level.

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[Renaissance Redneck]

Personally, I'd start with the simple things first. That would be moving your cold air feed back to where it was, and monitoring temps.
Temps in the root zone are pretty important, and coco doesn't have the density to buffer swings like soil does.
And not to be too obvious, I'd also double check your light timer and make sure your power didn't bump on you last night. On a 24/0 schedule, if temps are the issue you should see a pretty quick improvement.

 

[GoAuto6]

What rr said, if there on concrete it's a good idea to get them a foot or more of the ground.

 

[Waira]

...looks like cold shock,.... otherwise, over/underwatering do this, especially with the petioles wilting,...

 

[bushmasterar15]

Thought these might be good to insulate from a cold floor www.harborfreight.com/4-piece-anti-fatigue-foam-mat-set-94635.html

 

[Autoflower420]

Thought these might be good to insulate from a cold floor www.harborfreight.com/4-piece-anti-fatigue-foam-mat-set-94635.html
View attachment 845417

I have mine off the cold floor on top.of old.plant.pots works perfect

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[SnickleFritze]

Personally, I'd start with the simple things first. That would be moving your cold air feed back to where it was, and monitoring temps.
Temps in the root zone are pretty important, and coco doesn't have the density to buffer swings like soil does.
And not to be too obvious, I'd also double check your light timer and make sure your power didn't bump on you last night. On a 24/0 schedule, if temps are the issue you should see a pretty quick improvement.

Yeah thanks I've done all that, also was worried about a salt build up so flushed and refed. Only time will tell now [emoji111]

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[SnickleFritze]

I'm growing in a loft guys so no worries about a cold floor [emoji111]

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