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Back to Grow Questions
Magnesium deficiency?
RinNohara
started grow question 5y ago
Hey guys is this a nitrogen and magnesium deficiency I got going on here?
Open
Leaves. Color - Yellow
Feeding. Deficiences
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Answer
Roberts
answered grow question 5y ago
You have a ph in your substrate is off. You are in lock out on several nutritional needs. Run enough of correct ph water through soil till run off reads in range then replenish nutrition.
1 like
Complain
Theptsdgrower
answered grow question 5y ago
Dude you seriously need Epsom salt, first I'd hydrogen peroxide my soil, flush, then epsom and cal mag
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Complain
Similar Grow Questions
Solved
kush_dreams
Nute burn or something else?
My middle and top leaves are yellowing from the tip and edge inward, is this the nutrient burn or another issue altogether? Runoff PH was 5.9 and ppm was 700.
Week 13
Leaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
3
2
Solved
GhettoStyle
friends tell me what it can be!?
I don't understand why the leaves have such a color!! like cal-mag added and EC 0.5 is not so big for this stage of growth !!! I don't understand why the leaves have such a color(
Leaves. Color - Yellow
Leaves. Other
Feeding. Deficiences
5y ago
3
4
Solved
CaptainKirk1188
Fixing deficiency/toxicity/overwatering issues
How do I properly identify and remedy these issues with my babies?
Week 12
Leaves. Curl down
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
7
10
Solved
AmokNewb
Does the paleness concern you?
Plant #1 seems a bit more on the pale green/yellowing side of the spectrum. Especially compared to plant #2. I have been feeding this week on a gradually increasing schedule. Not enough characters to go into it here.
Week 1
Leaves. Color - Yellow
Leaves. Color - Mottling
Feeding. Deficiences
5y ago
1
6
Solved
MBnVA
Help!! Deficiencies? Nutes? Progress?
Looking for advice on all! Yellowing from bottom up..they have a ways to go as I'm on week 6-7. I have the FoxFarm trio and plan to go about 1/3 of recommended dosage according to their chart..I started them but maybe early as I'm using FoxFarm soil and it might have been too muc
Week 9
Leaves. Dropping off
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
4
3
Solved
DojaMon
leaves yellowing
northern lights auto in week 2 of flower: leaves started yellowing from the bottom. it’s been going on for about two weeks, and now the leaves around the middle are yellowing too, and some of the yellowed leaves have brown spots in the middle. 8L pot in coco, fed lucas formula
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
5
Solved
Wilmer
Over fert?
The tip of the new leaves are getting yellow, but when they grow it disappear. Is this a first overfert synthom?
Week 4
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
1
1
Solved
GhettoStyle
Friends need your help! the leaves turn yellow at the seedling stage!
Friends, help me figure it out! First I will describe my conditions! - Tap water 110 ppm - LED QB288 Rspec 250 Watt light works at half the power! - Advanced Nutrients three-component Fertilizers Micro Grow Bloom now I'll tell you how it was! after they have sprouted! they were planted in the system! I made the solution on the recommendation of the fertilizer manufacturer! I added 1 ml/l of each component and it turned out 410 ppm! The second week I changed the solution completely and added 2 ml/l of each component, it turned out 600 ppm the yellowness on the leaves appeared after the first week! I thought it was a magnesium or iron deficiency! and I changed the solution and added 2 ml / l of fertilizers! I keep the ph of the solution within 5.7-6.0 drip irrigation works constantly! The temperature in the box is 23-25 C - humidity is 40-60% Inside, there is a fan on top that turns 360 degrees to blow the plants!
Leaves. Color - Yellow
Setup. Seedling
Feeding. Deficiences
5y ago
6
10
Solved
tiasmaaa
Yellowish spots ? Magnesium Deficiency ?
I noticed that on some leaves (not the new ones) there were 2-3 yellowish spots. And on a large leave, a point that turns brown. I thought about a small deficiency in Magnesium?
Week 6
Leaves. Edges burnt
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
2
2
Solved
buddhi_coop
Leaves yellowing
These leaves are stressing me out. I’m not sure if I’m having a lockout or if I’m not feeding enough phosphorous. Either way, I’ve been using 3 ml/gal of tiger bloom, 3 ml/gal formulex, 3 ml/gal big bud & 1tbsp of molasses for feeding. What do I do ?
Leaves. Color - Yellow
Leaves. Other
Feeding. Deficiences
5y ago
3
3
Solved
SlamFM
Which Deficiency(ies)?
After looking at some pictures and reverse image searching some of the attached pictures. I think it maybe both phosphorus and potassium deficiency.
Week 10
Leaves. Color - Yellow
Setup. Strain - Autoflowering
Feeding. Deficiences
2y ago
6
1
Solved
Dudders
To flush or to treat?
Some yellowing leaves, mixture between cloudy and clear trichomes. Do I flush from here on in. Or treat a possible deficiency?
Leaves. Color - Yellow
Other. Harvest - Drying
Feeding. Deficiences
5y ago
3
3
Solved
JiggleBudz
Yellow tint on new growth
I've spotted some yellowing on new growth. I'm just in the end of Week 3 and am thinking it's caused by nutrient deficiencies? I've been sticking to 0.25ml/L and am planning to go to 1ml/L starting Week 4. Does anyone have any other ideas?
Week 2
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
2
2
Solved
ganzigunnu
deficiency?
hi folks, is this calmag deficiency or what? its week 7. i always added 0.2 ec calmag to the solution. why im getting this now? maybe i need more of it. its only in one of the plants.
Week 7
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
2
3
Solved
Gottajiboo
Hot weather, not enough super soil, Leaves Yellowing???????? Need Help. Am I losing these beauties?????
HELP.. Temps in our tents got into high 90s, working on cooling. I thought we started to have nutrient depletion of the super soil as there is only about 2.5 to 3 gallons of sohum in each pot. Now I started feeding calmag, FF big bloom, FF Tiger Bloom. Leaves still yellowing????
Week 7
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
1
2
Solved
einamio
Buon giorno weed doctors, did anyone have similar uniform chlorosis at the top or maybe knows what's up? What could be the reason and the solution? Th
Is this some sort of immobile nutrient deficiency or excess? Could this be caused by heat and light stress? She is 80cm tall and almost touches the lights in the tent. I'm usually suffering from Calmag and Nitrogen issues and haven't yet experienced yellowing from the top. Thanks
Week 8
Leaves. Color - Yellow
Plant. Too tall
Feeding. Deficiences
2y ago
2
2
Solved
AADGrow
Leaves full of brown spots
My friend doesn’t have a grow diary but he uses advanced nutrients and feeds when almost dry. He has this problem on his leaves and he can’t seem to stop it. I suggested calmag but he feed it 2ml per litre on sunday and the problem is still increasing. What else can he do ?
Leaves. Color - Yellow
Leaves. Color - Mottling
Feeding. Deficiences
4y ago
1
3
Solved
flo_420
LIVE SOIL. too much nutes or not enough?
I think its toooo much nutrients from the live soil, and cold/dry conditions for too long. but someone else said it's lacking nutes? (I was sick, and they were a bit neglected for a bit.. ) using live soil, like I said more info in my diary thanks so much for any input 😊
Week 15
Leaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
5
3
Solved
420_Little_Green_Fingerz
Deficiency?
I think I have an issue here which could be a calmag deficiency please could I ask if you think im right? Thanks
Week 5
Leaves. Color - Yellow
Leaves. Color - Mottling
Feeding. Deficiences
5y ago
4
4
Solved
DrBuffy
How can I fix high runoff EC and pH?
EC high (0.2ms/cm in, 0.6ms/cm out), pH runoff a little high (6.71 in, 7.18 out). Yellowing of leaves moving up plant, followed by yellowing between the veins on new growth. Help please!! Had issues with this one for a while so last fed 2 days ago with 1ml/l of Biobizz
Week 9
Leaves. Veins - yellow between
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
3
7