4k is making my plants look like crap

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DaFreak

Well-Known Member
Because whos ever heard of 4500k causing problems? First one was cheap T5 replacement bulbs for non-growing off of Amazon. Second one if from respectable grow light maker. I’m regularly hitting 1.8gp with the ones I got in the flowering tents.
 
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Cardlee P

Well-Known Member
Rurumo said:
I notice weird deficiencies pop up when I veg under a 100 watt led, then they disappear almost immediately when I put them under my main light, with no changes in nutrients. Stronger light=higher temps, more frequent feeding, and just better utilization of nutes. I think Johnny is right.
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Nute deficiencie are heightened by roots encumbering at the container bottom. LEDs cause extreme root development when dialed in in veg. Upsize or add photoperiod. Your girls are ready to roll then...
 
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DaFreak

Well-Known Member
Screen Shot 2021-03-28 at 8.44.15 AM.png
This is the data from them hung at full power at 18 inches. So much lower than this at half power obviously. Yes the tent is 3x3. Generally speaking I hang my lights high the first few days and gradually lower them to avoid light stress and I did that with these as well. I can put them within a a foot of HO T5s and they don't stress. They are well established plants too, at least 6 months old on most and about a year on one. Next time I have to throw something into the tent I will hang them at 24 inches and turned down to half power to rule that out. My gut is telling me that's not it though, still will rule it out.
 
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Cardlee P

Well-Known Member
DaFreak said:
View attachment 4864405

These are mothers that have just been cut way back, pruned and transplanted with root mass being cut back before transplant. So I would expect a little bit of shock. This photo was taken just after that was done on March 14. I gave them a feeding of Renfo's mother recipe. Temps 79-80. Humidity about 55. 18/6.
View attachment 4864409
This picture taken on March 20th. So one week later. You can see how bad they look within a week under 4,500k. I've seen this happen 4 or 5 times now. I mean would 2 degrees warmer make that much of a difference?
View attachment 4864415
This photo was taken today, the 27th, so 1 week later about. Now I screwed up and was high, I should have taken one more pic yesterday to show what they looked like before this pic, because this is 24 hours back under the t5s. What you would have seen yesterday were these plants 3 shades more yellow. Those leafs on the lower left there were all yellow, no green in the middle like it is now. Now this was just 24 hours under the t5s. These are 4 different strains too.

Thoughts?
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Are you really asking if hacking rootballs might affect foliage?
 
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DaFreak

Well-Known Member
Cardlee P said:
Nute deficiencie are heightened by roots encumbering at the container bottom. LEDs cause extreme root development when dialed in in veg. Upsize or add photoperiod. Your girls are ready to roll then...
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Sorry but what? No, container size is irrelevant.
 
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Cardlee P

Well-Known Member
Cardlee P said:
Nute deficiencie are heightened by roots encumbering at the container bottom. LEDs cause extreme root development when dialed in in veg. Upsize or add photoperiod. Your girls are ready to roll then...
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And many kush are rank feeders and like a fat dog always appear hungry...
 
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DaFreak

Well-Known Member
DaFreak said:
It’s a root problem or maybe a kush problem, thank you for your incredible insight. You’re extremely impressive, wish I could grow weed like you. Happy? Now buzz off idiot.
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Look, I’m going to quote myself again and again because that’s how awesome I am. Buzz off
 
bk78

bk78

Well-Known Member
DaFreak said:
View attachment 4864805
This is the data from them hung at full power at 18 inches. So much lower than this at half power obviously. Yes the tent is 3x3. Generally speaking I hang my lights high the first few days and gradually lower them to avoid light stress and I did that with these as well. I can put them within a a foot of HO T5s and they don't stress. They are well established plants too, at least 6 months old on most and about a year on one. Next time I have to throw something into the tent I will hang them at 24 inches and turned down to half power to rule that out. My gut is telling me that's not it though, still will rule it out.
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You just said you have a box collecting dust of par meters. Why wouldn’t you use one instead of saying it’s the led causing issues?
 
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