The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Calcium deficiency?
Peeman
started grow question 5y ago
Photos of Trainwreck #1 top leaves have brown spots and curling tips. Is this a calcium deficiency? Please help 🙏
Open
Week 10
Leaves. Other
likes
Answer
The8thChevron
answered grow question 5y ago
In most cases, this is a calmag issue. Either she's not getting enough or the pH is off so she can't take it in. Either way, easy fix! Looks great!!
2 likes
Complain
GrowGuy97
answered grow question 5y ago
If it starts from the bottom up it’s a calcium deficiency, if it starts from the top she needs more water! ( from my experience of course) hope this helps friend & happy growing!✌️🏼🌱
likes
Complain
Similar Grow Questions
Solved
Grey_man_2074
Q) What techniques can I employ to maximise yield? I'm not sure they're all the same strain...
Week 6
Leaves. Other
8y ago
3
5
Solved
BIaze420
Stunted plant - Leaves are blotchy and wrinkly - Problem identification
My stunted plant is recovering i guess, looking better than a week ago and is growing bigger slowly, but the problem has to be identified so i don't make that mistake again. The leaves look as stated, light burn looks alike but i'm not sure since the other 3 had the same distance
Week 2
Leaves. Other
Plant. Too short
3y ago
3
3
Solved
StonerDude47
Northen light small yellow spots
Small yellow spots on old leaves Pre fertilised soil Sf 1000 23-25 Celsius 45%-60% hum 53 cm light distance 22 days since sprouting No fertilizer added Ph 6-7 15 lt plastic pot
Leaves. Other
5y ago
3
4
Solved
Spike-GreenGrower
Potassium, correct?
I think this is the beginning of a potassium deficiency. The near neon green discoloration is what caught my eye. This leaf is affected the most. Second week of flower. The Alga Bloom was just increased from 2 to 4ml/l earlier this week, so she should be alright. Right?
Week 9
Leaves. Other
Feeding. Deficiences
11d ago
10
7
Solved
Tree_man
Brown edges fan leaves
Leaves edges been turning dark brown/black then the rest of leaf turns yellow and eventually i can pull it off. Has slowly been happening since adding rhino-k. All buds look healthy trichomes look good have read this is normal hoping to get a experienced growers opinion thanks.
Leaves. Other
5y ago
3
3
Solved
Flyalivebeats
White spots on leaves
Any ideas what the white spots are on this plant? Also the leaves have been droopy the past two days, and I have not over watered.
Leaves. Other
4y ago
1
1
Solved
Seed1997
Foglie con gocce d'acqua nonostante umidità al 30%
Salve! Ho un problema (forse). Sulle foglie delle 3 gorilla 🦍 spesso trovo delle gocce d'acqua che non so davvero come spiegare dato che l'umidità è al 30% (quindi anche fin troppo bassa) e le foglie di una in particolare sembrano quelle di una pianta grassa...
Week 4
Leaves. Other
4y ago
1
2
Solved
Dillsnills
Leaf septoria or jus a deficiency? I removed the affected leaves.
I jus removed these as a precaution, leaf septoria is what I was told this is in week 3-4 flowering ik it def will be stunted now I wiped my tent down w a wash cloth and hydrogen peroxide I did not want to use bleach, what should I do next?Keep an eye on it and hope for the best?
Leaves. Color - Dark-brown
Leaves. Other
Setup. Strain - Autoflowering
5y ago
3
3
Solved
m0use
white tips on seedling
whats up with white tips on seedlings? It does not look burnt, The soil mix is same as other plants. Seen this once before & recently in Questions tab. Could only find this one. 1yr old. https://growdiaries.com/grow-questions/33624-seedling-white-tips Any idea whats happening??
Leaves. Other
Plant. Other
Setup. Strain - Autoflowering
4y ago
5
2
Solved
SugarBoogers
White spots?
What are the white spots on the leaves?
Leaves. Other
5y ago
2
2
Solved
donovanliam
the lower older fan leaves are curling and developing brown spot and the inside newer growth is light green alomst yellow. what am i doing wrong?
Week 13
Leaves. Other
7y ago
2
2
Solved
Highclass
Leaves twisting
Leaves twisting a bit, maybe its nothing, first pair of leaves of 1 of the plants Temperature: 20-28°C Humidity: 40-60 Led distance: 40cm Good airflow (in and extraction + oscilating fan)
Week 3
Leaves. Other
6y ago
6
4
Solved
Highclass
One of the critical bilbo dropped he new leaves with a light green-yellow color, is it normal? The rest of the plants are ok. This plant has weird leaves since begim, like curly and sharp.
Week 7
Leaves. Other
6y ago
3
Solved
Cremo
Are my leaves getting burned?
Hi peeps, here's the thing.The "bottom" of my leaves started to look kind of like they're dry. The PH is perfect 5.6 for hydro, I worry that the super low humidity of around 30 has something to do with it. The temp doesn't get hotter than 27C, at night around 18.Water temp is 21C
Week 5
Leaves. Other
6y ago
4
2
Solved
HAPPYWEEDS
Too much light? Dry and weak leaves and growth
She born 10 days ago but her leaves look like dry and weak. She is under 310W led light at 24 inch and 60% of power. She is growing on soil/coco 60/30 and I just watered 3 times with ph 6 water around 0.02-0.04 gal. Do you think it could be too much light
Leaves. Other
4y ago
4
5
Solved
Bubble_Budz
Can you help figure out the deficiency and what to do about it in DWC? The lower leaves started to display these symptoms. Ph levels are in range and I last fed them yesterday (10ml calmag & 10-40ml of pure blend depending on their ppm) Thanks for all your help growMies! 🙏🏾
Week 2
Leaves. Other
4y ago
3
4
Solved
PapaBaer
Leaves kringeln sich
Warum kringeln sich die Blätter so?
Week 12
Leaves. Curl down
Leaves. Other
4y ago
1
2
Solved
prem895
How do I fix this
Not sure what these spots are but can someone help me with this deficiency please
Week 9
Leaves. Other
5y ago
1
2
Solved
McNuggs
Garden visitor eating my fan leaves.
This is my second grow (outdoors) and I need some advice. Saw some holes on the SSH fan leaves. When I flipped one of them over, I found a visitor that I think is a Spider Mite. The grow is looking good but I want to avoid any problems. How do I get rid of them?
Week 11
Leaves. Other
5y ago
3
3
Solved
MRHERB
Nutrient deficiency or nutrient burn not sure
Nutrient deficiency or burn, at the bottom of the plant
Leaves. Color - Yellow
Leaves. Other
5y ago
2
4