Vote Now 🏆 for the Grow Awards 2025!
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
What deficiency is this? Starting to show on the l...
KiloFlowkeystarted grow question a year ago
What deficiency is this? Starting to show on the lower leaves
Open
Leaves. Color - Dark-brown
likes
Answer
MendocinoGreenoanswered grow question a year ago
calcium deficiency. Try using some CalMag 👍
likes
Complain
HeavyHittahanswered grow question a year ago
Slight calcium deficiency.
If it's on old growth and the new growth is fine. Then don't worry.
2 likes
Complain
AsNoriuanswered grow question a year ago
Calcium.
By leaf look would guess overwatering, that swings pot ph .
2 likes
Complain
FraFra__frankenstoner_Two_days_in_a_dayanswered grow question a year ago
This is no deficiancy! Maybe there might be bugs. Look closely for little bugs.
likes
Complain
Similar Grow Questions
Solved
bekiffteridiot
Nutrient deficiency?My plant is not doing good and I sadly don’t know what’s wrong with her. I would be very happy if someone could help me solve this. My tent is about 26-29 degrees at day and 24 at night. RH is 60%Buds. Not fattening
Leaves. Curl down
Leaves. Color - Dark-brown
9 months ago
1
1
Solved
Germaican
What deficiency is this ?What is happening to my plant right now ?
I believe it is calcium deficiency also could be Manganese from the pictures. I did not add CalMag during the first weeks.
Usually Calcium deficiency shows after 4 weeks and during flower but not likely in soil.
Started around 6th week8 months ago
5
3
Solved
Surety
Deficit or surplusHey,
Can someone Help me pls?
Triple G Auto
Week 9
Soil
everything went great until today
Starting some Brown Spots on the top leaves
Maybe phosphorus deficiency or calmag deficiency?
Fertilizer hesi half according to scheme
watered two days ago with ph 6.4
Drain was ph 6.8Leaves. Color - Dark-brown
8 months ago
2
1
Solved
Jan_Jan
Flecken auf Blatt und Halm oder Helikopter-MutterDie 2 Flecken auf dem vorderen Blatt und die dunklen Stellen am Halm beschäftigen mich ein bisschen. Glaubt ihr, die Pflanze hat ein Problem oder mache ich mir mal wieder zu viele Sorgen?
VP 10. Steht im 11l BB AllMix und wurde einmal am Anfang der VP mit 3l gewässert.8 months ago
4
4
Solved
telez00m
Curled leaves and brown spotsPlease help! My Acapulco Gold suddenly showed leaf symptoms today. Shouldnt be a lock out, I always water with drain and use lower doses than the BioBizz chart recommends. Used Molasses two days ago, could that be the cause? Its the only plant that shows this signs.8 months ago
1
Solved
Smoking_Joe_Frasier
Discoloration underneath the leaves. Should I be concerned?Leaves. Color - Dark-brown
8 months ago
2
2
Solved
docpayce
Is this fungus infection or calcium deficiency?Plant seems fine overall but shows brown spots on some leaves (new and old). Week 4 bloom in soil. 3l rain water pH adapted + CalMag to 250 µS/cm. Crazy Hills fert. twice a week (EC 1600 µS/cm). Water pH 5.0, drain pH 7.4, drain EC 1400 ... 1500 µS/cm.Leaves. Color - Dark-brown
8 months ago
1
1
Solved
Palatinate_Mate
degenerated plantAny idea what happened to that plant?
Fimmed it and removed one fanleave couple of days ago, the others are fine.
Maybe sunburn? I think she'll make it, I'd like to know what happened.
check out my diary, all infos should be there. if not, feel free to ask.
thanks n cheers9 months ago
3
5
Solved
Mack_420
Wtf?Hallo Liebe Community, kann mir einer sagen was hier vor sich geht?Week 4
Leaves. Color - Dark-brown
9 months ago
6
Solved
RandoMan
Brown spotsWhat is going on here? Plant has been doing so well until this.Leaves. Color - Dark-brown
9 months ago
1
1
Solved
RandoMan
NutritionI was at 800ppm going into flowering and was suffering from a cal mag deficiency. I addded c/m my ppm was up to 1500. Does this sound right? I am doing flood and drain hydroponics. Plant is 2 weeks into flower. What should my ppm be for 3 part nutrient general hydroponics plus CMLeaves. Color - Dark-brown
9 months ago
1
1
Solved
sinasafari
Top growth issuesTransplanted outside more than a week ago and it was doing really good until this happened
Any help would be appreciated.Leaves. Color - Dark-brown
10 months ago
3
3
Solved
Jokoonov
Hey Friends… it’s my first grow and it’s Jack 47 Auto XL - I don’t know what happened, but look burn or something?! Do you think still should try or take new one?
ThanksLeaves. Color - Dark-brown
10 months ago
5
3
Solved
ganzigunnu
this means?only deficiency showing now, started feeding only recently. why could have this happened?Week 7
Leaves. Color - Dark-brown
10 months ago
4
4
Solved
SaiMutsu
N or P deficiency?Need help to understand if this is P or N deficiency. It's on the lowest fan leaves, one is more pronounced than the other, and it's mostly on one side. Stems and veins look like they're giving hints of P def but from what I searched leaves look like it could be N def.Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
9 months ago
3
3
Solved
kira90
leaves with brown spotshi guys, do you know what these stains could be? Can you give me some advice please?Leaves. Color - Dark-brown
9 months ago
1
1
Solved
Dragosani666
Top leaves turn dark and curl - What can I do?I've had Nitrogen and possible Cal/Mag deficiencies 2 weeks ago.
Mid last week I started noticing some burn a the tips, so i dialed nutrients back again.
By this weekend the tips of the leaves curled further and turned dark.
The rest still looks a bit pale, but buds look good.9 months ago
4
5
