Cant tell what this is!?

Grow Support Autoflowers
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Cant tell if this is a deficiency or light stress or what!?
Growing autos in a 2x4, SF2000, light is about 14 inches away, RH is about 45%

Thanks for any input grow fam!

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We need a bit more info. soil brand, nutes, lights, fans, exhaust…Tent size

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Why would the soil brand matter this late?
Jacks 321, sf2000, 2x4, 4 inch inline, plus two fans

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Just wondering if you’re ph and ppm numbers are good. Those waxy looking leaves is nitrogen overload. Check the runoff ppm.

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Runoff is good, its at 1200.
Same with ph.

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I will tag a few to assist. phosphorus in parts of leaves.
@bigitch @beardless can you assist with this.?
Flush and ppm?

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Cool thanks man, so shall i.

@ThatsNotMineOfficer @Pinboy @Kingkupa

Any thoughts grow bros?

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How high does the factory recommend running that light?

Looks to me like you are burning your plants up. Maybe I’m not seeing it correct, but it looks like the outermost leaves are yellow which would indicate to me like your light is too close.

I believe I would raise the light to about 18-24”.
What it looks like to me, when your light is too close, your leaves can’t produce the chlorophyll that your lights are burning off, causing your leaves to turn yellow. Too much for too long, and it takes on a phosphorus or potassium toxicity.
Is Jack’s the only nutes you’re running? :+1:t2::v::sunglasses:

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Hmm interesting.
Spider farmer recommends 12-18 inches in flower, according to the chart it came with. But ill try backing off the light. Only thing is that its not just at the top, its in spots on the bottom parts too.

I use mamoth p also.

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Hmmm odd, the one on the right looks like a photo that revegged

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That thought occurred to me as well. :thinking:

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Yeah theres def something funny going on there, I’ve never seen a plant throw 1 blade leafs unless it revegged @HMGRWN

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Do you think nitrogen, i noticed the waxy looking leaves.

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Maybe, but I don’t really get that vibe.

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I do not think you are late at all. Most deficiencies show up a couple weeks into flower. To me that is about the age I see.

You are in soil…what is feed pH?
What is runoff pH?
Water source? What is it natural pH & PPM?
Have you tried to decrease runoff PPM? I don’t get anywhere close to 1200 even in coco and Jack’s.
What mix formula are you using. 3.6 / 2.4 / 1.2? or Jack’s feed schedule rates - curious…

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I don’t have anything to add that hasn’t already been said except a COMPLIMENT!! That little one is phat like dwarf porn!! So thick!!