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Back to Grow Questions
Crispy Yellow Leaves
MediciGrade
started grow question 6y ago
Inflow EC=1333 w/ PH=5.8 vs Runoff EC=658 w/ PH=6.0. Insufficient nutes due to light intensity? Perhaps my PH meter is inaccurate? Light is 42 inches from canopy or ~600 PPFD. RH 65%, Temp 80 F.
Solved
Week 8
Leaves. Veins · Yellow between
Leaves. Color · Yellow
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NobodysBuds
answered grow question 6y ago
everyone says 5.5-6.0, but unless your fertilizer says so, you should more likely stick to 6-6.5.
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Selected By The Grower
MediciGrade
answered grow question 6y ago
I'm growing in coco and perlite 80:20.
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TimTheTerpMan
answered grow question 6y ago
I agree with Nobody. Your pH is a bit low for soil 6-6.5 has help my girls stay healthy! Happy growing!
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Similar Grow Questions
Solved
Akvinsky
Setup: Soil+vermiculite (5:2) Temperature in box is about 84F. Near the led 60w is about 90F Ph in - 4.5-5.0. Out - 6.0-6.5 (because of vermiculite?). Ppm in - 140 (only water last few days) . Out - 1500
… Show more
Week 7
Leaves. Tips · Burnt
Leaves. Veins · Yellow between
Leaves. Color · Yellow
6y ago
4
Solved
Eagers
Help diagnosing deficiency
Can someone help diagnose this? Is this a Nitrogen deficiency or a Potassium deficiency, Ph runoff is fine 6.4 and EC runoff is 1.8. Lower leaves have been yellowing and dropping so last feed I upped grow to 1.5ml/l from 1.0ml growth has been good. Dont want issues now tho Thanks
Leaves. Veins · Yellow between
Leaves. Color · Yellow
6y ago
1
1
Solved
kaiabel
Hi growmies, FD 41 can you check the progress?
Can you check my flower day 41. I think they getting better just the NYCD still looking a bit strange on the leaves. Keeping the feed up and wait till they show better color. NYCD third pic Maybe you guys see something im missing. Thanks and have a great day. Peace
Week 13
Buds. Not fattening
Leaves. Veins · Yellow between
Leaves. Color · Yellow
3y ago
3
3
Solved
Chow_13
PH Fluctuations and/or Nutrient Issues?
I'm Running a Recirculating Deep Water Culture System( hydro). Had PH dropping dramatically a few days back but did a full water change and everything has stabilized. Just Flipped to a 12/12. Does it look like that was the issue or is it nutrient toxicity/deficiency. Or Stress?
Week 9
Leaves. Veins · Yellow between
Leaves. Color · Yellow
6y ago
2
Solved
Homegrown93
Leaf fade vs. deficiency
Hey everyone, does this look like a deficiency? I’m in week 6 of flower, I had half a week of high temperatures and I’m sure she was affected just a bit and noticed Bud growth slowed slightly. Not sure that influenced this and if it’s a deficiency(magnesium?) or normal leaf fade.
Buds. Not fattening
Leaves. Veins · Yellow between
Leaves. Color · Yellow
5y ago
3
4
Solved
GrowingNBlowin
Help diagnose deficiency? Magnesium, Ph?
Magnesium deficiency? PH problem? Other? How should I go about fixing this? Overall the plant looks healthy but the lower/older leaves are starting to get some spots.. I want to figure this out before it spreads..
Week 4
Leaves. Wilting
Leaves. Veins · Yellow between
Leaves. Color · Yellow
6y ago
1
Solved
Misanthrope
Discolouration progressing
The first pic is from 2 days ago, now the yellow has turned to brown spots and is beginning to spread to others. I'm hoping it's an easily corrected nutrient imbalance, please help
Leaves. Veins · Yellow between
Leaves. Color · Yellow
5y ago
1
4
Solved
Chitown_grower
They are on the older leaves and they keep getting that faded yellowing starting from the tips. The pH of the run off is 6.43 and they havent been fed a round of nutrients in a week! I thought it was a cal/mag def but they haven't bounced back after a dose. Help please!
Week 4
Leaves. Curl down
Leaves. Veins · Yellow between
Leaves. Color · Yellow
6y ago
2
1
Solved
Maskedcucumber
Roots getting brown
My Ph probe didn't work, PH was at least more than 0.30 (maybe 0.60) than displayed. As a result they had multiple chlorosis, now septoria leaf spots and possible Pythium since the roots are getting brown. What would you do to save the crop ? Adding mycorrhizae? Thx!
Week 8
Leaves. Veins · Yellow between
Leaves. Color · Yellow
Roots. Color · Brown
5y ago
2
1
Solved
Moondogz
Suspected Nitrogen Deficiency
Noticed yellowing leaves at the start of Week 3. Suspect nitrogen deficiency. Using Cal-Mag, Alga Grow(NPK 4-2-4), and Power Roots(NPK 0-0-2) at half the recommended dosage. PH is measured at - 6.5.
Leaves. Veins · Yellow between
Leaves. Color · Yellow
Feeding. Deficiencies
2y ago
2
2
Solved
MediciGrade
Crispy Yellow Leaves
Inflow EC=1333 w/ PH=5.8 vs Runoff EC=658 w/ PH=6.0. Insufficient nutes due to light intensity? Perhaps my PH meter is inaccurate? Light is 42 inches from canopy or ~600 PPFD. RH 65%, Temp 80 F.
Week 8
Leaves. Veins · Yellow between
Leaves. Color · Yellow
6y ago
1
3
Solved
BlumenBot
Deficiency or excess?
I seem to have this same issue or similar issue with every grow. What am I screwing up? Affecting my largest fans.
Week 10
Leaves. Dropping off
Leaves. Veins · Yellow between
Leaves. Color · Yellow
5y ago
1
7
Solved
Nick_Frampton
Weird pattern on leafs
Hey everyone. I've noticed some of my plants have slight yellowish color on them. Can anyone help me out with this? The third picture is my best plant so far
Leaves. Veins · Yellow between
Leaves. Color · Yellow
Plant. Stem · Red or purple
5y ago
1
1
Solved
Panda56
Yellow spots on leaves
Are the yellowing spots signs of Leaf Septoria? I'm assuming it's more of a nutrients issue but have never experienced LS and wanted to get some second opinions.
Week 4
Leaves. Veins · Yellow between
Leaves. Color · Yellow
3y ago
1
1
Solved
Franzl
Whats wrong with her ? Clawing and yellow spots
Im a first Grower. Here some info: Location: Indoor, 60x60x180 Light: Mars Hydro 1000 Soil: BioBizz Light fertilizer: BioGrow GreenHouse pH: ~7,3
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Leaves. Curl down
Leaves. Veins · Yellow between
Leaves. Color · Yellow
5y ago
5
Solved
Maskedcucumber
Brown roots : Is this Pythium?
Is it chlorosis, deficiencies, septoria, pythium ? calmag, iron, H2o2 or mycorrhizae needed ? What would you do to save the crop (preflowering stage) ? Thanks a lot for your help
Week 8
Leaves. Veins · Yellow between
Leaves. Color · Yellow
Roots. Color · Brown
5y ago
5
5
Solved
DannywithaJ
Welchen Mangel hat Sie?
My plant is showing signs of deficiency on the oldest leaves. I increased CalMag and nitrogen because of that. Thought it was the issue. Obviously not. Does anyone have an idea?
Week 4
Leaves. Veins · Yellow between
Leaves. Color · Yellow
1y ago
2
5
Solved
SirTucksAlot
Hey guys got some discolouration on the leaves! Can’t tell what it is! Cheers
Week 5
Leaves. Veins · Yellow between
Leaves. Color · Yellow
6y ago
3
3
Solved
Slurpy_Terpy
Slow growth yellow leaf edges what to do?
Plant growing slowly (but still growing) with weak growth tips and yellow edges on leaves with interveinal chlorosis. Looks like overwatering / magnesium deficiency to me. I use a weighing scale to know when to water, but started the plant in 25L pot so this might have caused it.
Leaves. Veins · Yellow between
Leaves. Color · Yellow
Plant. Stem · Weak
5y ago
7
13
Solved
Brent_60s
Yellowing
For some time now their has bin two small areas about the size of your fist that had yellow spots so I tryed giving it Cal-Mag extra in with its feedings but now all of a sudden the hole plant looks like some one splattered it with yellow
Week 21
Leaves. Veins · Yellow between
Leaves. Color · Yellow
3y ago
5