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Back to Grow Questions
Magnesium deficiency?
JERgarden
started grow question 7y ago
It seems this girls is showing a magnesium deficiency? If this is correct, should I increase the cal-mag doses or should I just give her a high dose of epsom salt? Appreciate the help!
Solved
Week 8
Leaves. Veins · Yellow between
likes
Fruitgrower
answered grow question 7y ago
I'm not really sure what that is but it's not magnesium. Perhaps it's some kind of overdose/lockout or over/under watering., 🌱👍
2 likes
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Selected By The Grower
HighRoller909
answered grow question 7y ago
not a deficiency. ph problem. check your soil ph. it looks off
1 like
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growbie
answered grow question 7y ago
i thing too much nutes. Happend to me, same color on leafs like main.
1 like
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Similar Grow Questions
Solved
KilgoreTrout
Ok, so I’m starting to see a deficiency. Yellowing between the veins at uppermost leaves. My ph is on par. I’m maintaining my grow per normal with one change. I added Carbo load at 2ml/g. Could that be the problem? I think I’m going to flush today and dump my tank. Restart.
Week 14
Leaves. Veins · Yellow between
8y ago
2
1
Solved
Biggie95
My OG's are starting to yellow much earlier than I am used to. Pictures are taken on day 35 and they're supposed to be around 8 weeks of flower. Could the yellowing be due to high pH in the medium or maybe disease or am I just being paranoid?
Week 7
Leaves. Veins · Yellow between
7y ago
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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
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Solved
PaxIlluminare
Does anyone one know the deficiency causing the leaves to yellow in this fashion?
Leaves. Curl down
Leaves. Veins · Yellow between
Leaves. Color · Yellow
4y ago
1
1
Solved
Kwczekus
Missing nutrients high ph
I put my moisture/light/pH thing in the soil and it is high in alkaline. We have a lot of Alkaline in our water here. Soil is made out on my growers farm. She has grown for 30yrs now. Never had these problems till this year. What can I use to compensate and bring the ph down?
Leaves. Veins · Yellow between
Plant. Stem · Red or purple
4y ago
3
2
Solved
Countrypimp1981
Yellow veins
Why are the veins turning yellow? Is this something I should be worried about? This is happening throughout the plant.
Week 6
Leaves. Veins · Yellow between
3y ago
7
5
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
4y ago
5
Solved
einamio
Hello weed doctors, I need help identifying the problem and gathering advice how to enhance my second grow. It's only day 29 and my girls are sick, wh
I'm in biobizz lightmix. Started biogrow on D24, the dose was 50% in 400ml water. Until D24 only rootjuice. Yesterday gave 1400ml each, with 100% biogrow, pH6.4 EC 1.1. My water is hard pH7.7 EC0.8, so I wasn't adding calmag yet. There was 400ml runoff EC 1.9 - why? What do I do?
Week 4
Leaves. Curl down
Leaves. Wilting
Leaves. Veins · Yellow between
3y ago
9
7
Solved
420newbie
A few of the leaves started to get yellow spots along the veins. I was pretty sure it was nitrogen deficiency so I upped the nutes a little. Over the next day or so, 2-3 different leaves started to curl down at the tip. Is this too much nitrogen?
Week 5
Leaves. Veins · Yellow between
7y ago
1
2
Solved
NECROSANCT
what is this color?
this discoloration on the leaves is a sign of N deficiency? so soon?
Week 3
Leaves. Veins · Yellow between
7y ago
2
2
Solved
Chemperchemp
What to do? Where am I at now actually? I’m lost and slightly discouraged
When should I add happy frog fruit and bloom? This is my 3rd grow and im 0-2! I have a overfeeding problem but I’ve learned to be corrective and precise with ph and ppm and be pest preventative as well (heavy handed waterer as well..im trying). It’s day 5 of flower and I’m lost
Leaves. Veins · Yellow between
Other. General questions
Feeding. Other
4y ago
4
5
Solved
gornt
Stunted leaves
One of my plants is having a hard time - it's technically growing as fast as the others but it's leaves are half the size, slight discolouration and cupping. I suspect Mg, PH or overwatering may be the issue. All variables for each plant are exactly the same.
Week 4
Leaves. Veins · Yellow between
6y ago
2
2
Solved
SaintLoud
Yellow spots and purple stems
I have these yellow spots on my fan leaves and purple stems on just one of my Girl Scout Cookies. Both being fed the same thing, temps are stable and so is humidity. Don't understand what's up with this girl. 1st 4 pics of issue plant last is of her healthy sister.
Leaves. Curl up
Leaves. Veins · Yellow between
Plant. Stem · Red or purple
5y ago
5
2
Solved
AlexG
Nutrient deficiency. What is it lacking?
Can you guys help me figure out what my plant is lacking?
Week 4
Leaves. Veins · Yellow between
Leaves. Color · Yellow
3y ago
3
3
Solved
CzechNatural
Yellowing in between veins
Recently plants started to yellow in between the veins on the leaves
Week 3
Leaves. Veins · Yellow between
3y ago
3
6
Solved
Royalgorillaxx
Yellowing on leaves
7 days old seedling. Trying to identify the problem. Please help me. Biobizz light mix on one and compo sampa soil on the other. I spray only with water just to keep thr soil a bit wet. Not an overwatering.
Leaves. Veins · Yellow between
Leaves. Color · Yellow
Setup. Seedling
6y 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
ClaireCrystal
3 week old Skittles plant
This is one of my skittles plants I'm growing right now. One of the leaves on her started getting lighter spots near the veins. It is only a little right now but I am wondering if there could be an issue that I could solve before it gets worse.
Leaves. Curl down
Leaves. Veins · Yellow between
4y ago
2
5
Solved
Bam91
Aiuto come posso rimediare?
Bad deficiencies on the girl, I use Bionova fertilizers, and I follow the dosages, what should I do?
Leaves. Edges burnt
Leaves. Veins · Yellow between
6y ago
1
2
Solved
Eightblack
what can it be?? little watering? excess fertilization?
what do you think about it???🤔🤔🤔🤔
Week 8
Leaves. Curl down
Leaves. Veins · Yellow between
6y ago
2
7