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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. Deficiencies
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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
llu183
To Nute or Not?
About to hit two weeks. Growth has been steady, but slow. In lambert's cactus/succ. mix. I want them to be in a bigger pot and different soil, but they seem too little to transfer atm. Do they look like they're starting to lacking nutes? Did suffer some light/heat :(
Leaves. Color · Yellow
Plant. Other
Feeding. Deficiencies
6y ago
2
2
Solved
Maskedcucumber
3rd week since 12/12 and chlorosis is getting worse !!! Will my crop be crappy ?
Brought EC to 1.6, added 21ml of calmag, had to add 2L of osmosis water because the EC was 1.78. I changed the bad Ph probe and I let it fluctuate between 5.75 and 6. Should I remove the aluminium foil on the pot to let them breathe ? Not sure they are overwatered, I'm desperate
Week 8
Leaves. Tips · Burnt
Leaves. Color · Yellow
Feeding. Deficiencies
5y ago
3
4
Solved
bruxup
Yellowing Too Fast Or Natural?
I'm roughly 2-3 weeks into flower. Over the last week, I've noticed more yellow leaves than normal. Majority are bigger, older fan leaves but some are moving up the plants. New growths are a nice green and buds look healthy. Am I under feeding or overreacting?
Week 21
Leaves. Color · Yellow
Setup. Outdoor
Feeding. Deficiencies
6y ago
2
2
Solved
guerilla
Calcium deficiency or fungus??
Iv just gone into 12/12 and what i thought would be fixed with simple calmag. Has got worse! Leaves are very yellow with brown spots.. Seems to be just brown spots on 1 girl.. :-(
Leaves. Color · Yellow
Leaves. Other
Feeding. Deficiencies
6y ago
5
6
Solved
Misanthrope
Pin the tail on the deficiency
Some yellowing that developed on Gelato Auto in the last coupla days....my guess is nitrogen deficiency since feeding has been light throughout growth but I'm still new to the game and would love to hear from some more seasoned growers
Week 11
Leaves. Color · Yellow
Feeding. Deficiencies
5y ago
1
4
Solved
JacareGrows
Leafs yellowing
What can this be? It happened in 1 day. Is plant asking for nuts? I added only water for 4 days because i was afraid of been giving to much nutrients. Could be a pH problem?
Week 9
Leaves. Edges burnt
Leaves. Color · Yellow
Feeding. Deficiencies
6y ago
1
1
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. Deficiencies
5y ago
1
6
Solved
Dr_GrThumb
1st time grower - nute burn? Lockout? Potassium def? Light burn? HELP PLEASE
Experiencing some deficiencies/light burn/heat stress. Says SSH likes hot/moist climate. Plants are planted in FFOF Soil, fed them 15oz of nutes yesterday. Using advanced nutrient systems, see above. Light is a SF1000 LED meant for a 2x2 tent. Would that burn them hanging at 20”?
Week 2
Leaves. Edges burnt
Leaves. Color · Yellow
Feeding. Deficiencies
5y ago
6
6
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 fertili
… Show more
Leaves. Color · Yellow
Setup. Seedling
Feeding. Deficiencies
5y ago
6
10
Solved
DarkOG
Deficiency?
Would it be a nutrient dificiency?
Leaves. Color · Yellow
Feeding. Deficiencies
6y 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. Deficiencies
4y ago
1
2
Solved
fiatchd
Leaf problems
I think I did use too much fertilizers, whats happening here? https://growdiaries.com/diaries/180523-grow-journal-by-fiatchd
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Feeding. Deficiencies
3y ago
2
5
Solved
Leonard_Lunte
Should I flush? (Overfeeding)
I think I have overfed my 2 dwarfs. Theyre showing signs like very stringy skinny new growth and yellow leaf tips. Theyre still growing and I dont want to stunt their growth, so all I want to know is if it is necessary to flush. Please tell me how to flush if so, thank you.
Week 6
Leaves. Color · Yellow
Feeding. Deficiencies
6y ago
3
4
Solved
Bennygen2
Is this nutrients
Does this look like a nutrition problem? Grown in bio bizz light mix she's a zkittlez authaven't done grow diary yet so can't link she's just gone on to 1ml per l of bio grow and has always been cal.mag also used pirana and nevana from advanced nutrients any help would be awesome
Leaves. Color · Yellow
Leaves. Color · Mottling
Feeding. Deficiencies
5y ago
1
2
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. Deficiencies
4y ago
7
10
Solved
Lloyd_Jones
NPK Deficiency?
Does this look like some kind of N, P, or K deficiency?
Leaves. Color · Yellow
Leaves. Color · Dark-purple
Feeding. Deficiencies
6y ago
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. Deficiencies
2y ago
2
2
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. Deficiencies
5y ago
4
3
Solved
Jelly
Burn or deficiency?
Organic living soil, top dressed once w guano and vermiculite at start of flower. Last week fed with molasses and now have some yellowing on the upper leaves, some brown spots on top leaves, and red stems on one. No bottled nutes. Burn or deficiency?
Week 8
Leaves. Color · Yellow
Leaves. Color · Mottling
Feeding. Deficiencies
4y ago
2
Solved
Unkraut
Defiencies?
It seems i have 2 kind of defiencies 1 plant gets yellow on top 3 plants seem to get red/brown/yellow I checked PH of the soil, looks good -> 6,8 I checked EC of the soil it's 1.8-2.0 I use bio nutriens from biocanna + some cal/mag -> my water has alot of calcium in it in my town
Week 11
Leaves. Color · Yellow
Feeding. Deficiencies
7y ago
5
4