The Grow Awards 2026 🏆 
Deficiency help
SSFito173started grow question 5y ago
First week of flower and this starts happening. I flushed with 1 gallon r/o water hopefully it doesn’t continue. Anyone knows what deficiency is this?
Open
Leaves. Color - Dark-brown
likes
Answer
Experimentgreenanswered grow question 5y ago
It look like light burn or a micro nutrient deficiency (magnesium, copper etc).
If your lights are the proper distance and your feeding the plants a well rounded diet, then i would double check your ph pen is accurate. Recalibrate it if possible. You may be having ph swings too low or too high.
Happy growing. ✌️
likes
Complain
DeadStreamOrganicsanswered grow question 5y ago
It looks like it could be magnesium deficiency
likes
Complain
Similar Grow Questions
Solved
EvilGrower
Calcium deficiency?I recently bought Calimagic for my calcium fix. Prior to this week I have been using tap water for calcium. Is 2mL/gallon of calimagic too little? Noticed some leaf damage I believe to be calcium deficiency.
Does she need more calmag?
Thanks for your help all!Week 8
Leaves. Color - Dark-brown
6y ago
2
4
Solved
FrostyCloudzz
Hat irgendwer Haushalttips?
Kann ec und ph-wert nicht regulieren oder testen bitte um dringende HilfeLeaves. Curl down
Leaves. Dropping off
Leaves. Color - Dark-brown
5y ago
4
3
Solved
ThePotFactory
Ive got a few dots showing up on one of my plants. Could this be because of the cold??Week 2
Leaves. Color - Dark-brown
8y ago
5
6
Solved
Lolberries
Need helpAnyone able to tell me what this is.Week 9
Leaves. Color - Dark-brown
5y ago
1
Solved
deepsheeba
DeficiencyWhat deficiency is this. Supersoil. It affected mainly two fan leaves. Newer growth dont have problemsLeaves. Color - Dark-brown
4y ago
2
3
Solved
GanjaGartenZwerg
Braune Blätter in BlütePflanzen bekommen braune Blätter gedüngt wird mit BioBizz auf Erde die pflanzen standen leider ein paar Tage zu nass ich hoffe ich habe kein fusarium drinnen pflanzen sind schon seit drei Tagen nicht mehr gegossen worden und immer noch nass was kann ich maLeaves. Color - Dark-brown
2y ago
2
7
Solved
AUTOASSASSIN215
Heat stress or Root rot ??Hey my 7 month old plant not doing too good the leaves are turning brown and crispy Might be heat but then again Might be bud rot and it’s spreading like wild fire also i notice not a lot of flowering growth idk weather to chop it down or keep fightingLeaves. Tips - Die
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
2
Solved
FatalFarmer
Brown spots on one seedlingI noticed some small brown spots forming on one of my plants leaves, not sure what it is, maybe early sign of cal deficiency? The other plant looks nearly identical with out these spots, any advice helps although it could be too soon to tell what it is...Week 2
Leaves. Color - Dark-brown
5y ago
3
3
Solved
asbesto
Brown leavesAlcune foglioline sulle cime sembrano bruciate, friabili e secce. A cosa potrebbe essere dovuto? devo preoccuparmi?Week 10
Leaves. Color - Dark-brown
4y ago
5
3
Solved
Grazynka
Flush or what to do ?Advice please. I watered yesterday but the stains on the leaves are getting worse. Now I don't know if it is deficiency of cal n mag due to nutritient lock out which might be due to ph being off as I have 5 reders and all of them show a different thing. 🤦♀️...or it is it rust?3y ago
1
1
Solved
GreenLiving
Browning leaves sections of leaf surface discolouredDay 18 leaf worries, browning areas, slightly metallic shine. I think from reading it might possibly be a phosphorus deficiency but I’m not certain so though I’d ask for advice.
Thank you for your time and all answers are appreciated. Have a great day!Week 2
Leaves. Color - Dark-brown
4y ago
2
1
Solved
Magic43562
Brown spotsBrown spots only on 1 leaf, is this a problem? Wasn’t there this morningLeaves. Color - Dark-brown
5y ago
4
3
Solved
Young_agronomist
Что происходит с листьями ?
Подскажите пожалуйста 🙏Leaves. Color - Dark-brown
3y ago
4
2
Solved
MrRaid
One of the cookies has had a strange start but looks alot better now still want to know what the problem Is was she has had the same treatment as the others but shows its pain lol
I'm thinking maybe abit of nutes landed on the leaf ???? Check the photo let me know what you thinkWeek 3
Leaves. Color - Dark-brown
6y ago
2
1
Solved
bildo
What is causing my leaves to turn dark and dry?I'm growing 3 Gelato #33 plants in a DWC 5 G bucket setup. Same conditions for all 3 plants, but one of them is experiencing dark spots on the leaves and now they are beginning to shrivel up and dry out. The newer growth looks okay, but might not last long. What can I do ?6y ago
2
2
