Forst day of flower after a 24 hr of darkness period n notices this

78°f. Humidity 55%
Coco coir n perlite
First day of flower
Sf4000 about 2 ft above plants
I notice this yellowing on , only new growth on all my plants
Any advice? Just noticed it 1 hr ago after i switch lights on after a 24 hr of darkness

What food are you using?

Mine did that too a bit with a sf2000, think I had it at 12” from canopy, moved it up to 18”, seemed to help. I was also battling fungus gnats at the same time so was more worried about them.

Yellowing of the newest growth. My guess is iron or water issues in general.

drsaltzman said:

What food are you using?

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Sensi coco bloom part a and b , ppm in 665

Bunddp said:

Mine did that too a bit with a sf2000, think I had it at 12” from canopy, moved it up to 18”, seemed to help. I was also battling fungus gnats at the same time so was more worried about them.

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Ok ill move them up 18in n see if that helps but weird thing it happened while when it was dark. Cuz when i lollipoped , they were all green

green_machine_two9er said:

Yellowing of the newest growth. My guess is iron or water issues in general.

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Im using ro water it only has 21ppm, ill give it alitle extra iron n sulfer to see if it helps, just question. U dont thing its normal cuz of stretching?

More A

Morea like sensi coco bloom? Also heard i shoukd stuck with sensi coco grow 1 or 2 weeks cuz they still need nitrogen. is that corect?

SkyFox said:

Im using ro water it only has 21ppm, ill give it alitle extra iron n sulfer to see if it helps, just question. U dont thing its normal cuz of stretching?

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No there is nothing normal about your situation. It’s reminds me of problems withRO. Either mg ca or iron working together or against each other if the rations are wrong.

SkyFox said:

Morea like sensi coco bloom? Also heard i shoukd stuck with sensi coco grow 1 or 2 weeks cuz they still need nitrogen. is that corect?

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What’s your ph when feeding?

Lordhooha said:

What’s your ph when feeding?

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5.8 on the dot all the time

green_machine_two9er said:

No there is nothing normal about your situation. It’s reminds me of problems withRO. Either mg ca or iron working together or against each other if the rations are wrong.

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How do i fix that

SkyFox said:

Morea like sensi coco bloom? Also heard i shoukd stuck with sensi coco grow 1 or 2 weeks cuz they still need nitrogen. is that corect?

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If you stopped I think you found your problem

Herb & Suds said:

If you stopped I think you found your problem

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What u mea. If u stopped? I yesterday gave them all a plain water ph feed dontknow what elsw to do

SkyFox said:

5.8 on the dot all the time

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Fluctuate it to from 5.8- 6 . But looks like iron deficiency.

SkyFox said:

What u mea. If u stopped? I yesterday gave them all a plain water ph feed dontknow what elsw to do

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That is where u fucked up.

Trickyticky said:

Fluctuate it to from 5.8- 6 . But looks like iron deficiency.

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Should i give them a foliar spray of it? I have this 13 essentials i can spray them

In coco they need continuous nutrients

Trickyticky said:

That is where u fucked up.

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What u mean? They were like that before i plain water, noticed the ppm higher then what i put in they were about 300-400 above the ppm i put in