Check the winners The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Calcium deficiency?
Peeman
started grow question 6y 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 6y 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 6y 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
natuurlik
Possible nutrient deficiency please help
Whats with the colour on these leaves, Ph is in check, I've kept it in the range of 5.9-6.2 PH since seed, the older leaves like the one on my hand looks almost wrinkly like old peoples hands after being in water for too long... any help would be greatly appreciated
Week 4
Leaves. Other
6y ago
2
Solved
Smokey89
Clawing fan leaves with brown edges
Please help this is my biscotti mintz photo from barney's. I'm using organic dry ammendments to feed the last 2 days the fan leaves have started to claw with a brown tinge to the edge of the leaves any ideas what this is. Week 5 of veg
Leaves. Curl up
Leaves. Other
4y ago
4
Solved
krewgrew
Dark Spots/dying leafs.
Hey Can you help me identify what the problem might be? They have not received N for 4 waterings (or very minimal) 2 out of 6 plants are affected.
Leaves. Other
2y ago
5
3
Solved
Gwrrr
Not a clue
Look ok ?
Week 2
Leaves. Other
6y ago
1
Solved
Ionic20
How's she looking now?
I think she's looking good now and recovered well. But are these pest eggs or the? Thanks
Leaves. Other
Plant. Other
6y ago
2
3
Solved
MrJoint
Deformed leaf
Deformed leaf, Should I worry??
Leaves. Other
5y ago
4
4
Solved
Elpicor
Gnants?
Hello growers, the gnants have appeared, can it be due to them or is the problem caused by some lack of nourishment?
Week 4
Leaves. Other
3y ago
6
6
Solved
G4NJAG4NG
I've recently switched to 12/12 and because of the temps where I live I have opted for lights on 10pm to 10am, now just a quick question, during uninterrupted darkness would me briefly opening the tent to water badly disrupt this? Using my phone light to water the plants?
Week 6
Leaves. Other
7y ago
2
1
Solved
Chilipadi
Markings on leag
Any idea what the markings could be on the leaf? Plant is healthy not showing any issues. Its not nute burn for sure as im feeding light.
Week 4
Leaves. Other
6y ago
2
2
Solved
BudahBudz2020
Hey guys can anyone tell me what this is the new growth seems fine a tad bit lighter green but the older leaves some have this please help im leaning toward a cal mag deficiency Using bio bizz light mix Bio grow and a few drops of root shoot Week 4 of veg
Leaves. Color - Dark-brown
Leaves. Other
Other. Bugs
6y ago
4
4
Solved
Jaythegrower
Lime green leaves
I woke up an my new leaves are a lime florescent color can anyone explain and help me remedy the situation
Leaves. Color - Yellow
Leaves. Other
5y ago
4
Solved
Arcadios
Are these spots an early sign of deficiency?
Are these spots an early sign of deficiency?
Week 3
Leaves. Other
6y ago
5
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
EXZELENS
Is that calcium deficiency?
Idk exactly what it is, so if anyone is sure of it I would be happy to know! Thanks in advance!
Week 5
Leaves. Other
6y ago
1
1
Solved
topbilling
Twisting leaves?
The leaves on Blueberry #1 (top right) are starting to twist a bit. Should I be worried? The only changes I've made recently are: 1) increasing light up to full wattage and 2) adding second fan (lower left) to add more air circulation.
Week 2
Leaves. Other
6y ago
7
4
Solved
Flamingo21
Light green spot on leaves
I noticed a small light green spot a couple of days ago on her and I know I had this on the very bottom first leaves couple of weeks ago and now its on a very top leaf.
Week 6
Leaves. Other
5y ago
1
1
Solved
Canadian
I would like to know if somebody has a second opinion and what's going on with my plans. leaves .symptom.
Week 7
Leaves. Other
7y ago
1
1
Solved
greenpager
Red-tinged yellow spots on one fan leaf
This week's pics incl close-up of yellow spots visible on both sides of this one leaf. Soil mix includes diatomaceous earth (I top off each week) + 1/4 mosquito dunk crumbled into bits worked into topsoil. Are spots a sign of fungus? Insect? Too much rain? Something else? Ty!
Week 8
Leaves. Other
4y ago
5
8
Solved
EJBudz
Leave shape/angle
why do my leaves have the shape they do? (up then curling down)
Leaves. Other
4y ago
4
3
Solved
Gmgness
How this looking? Need calmag?
Hey. How is this looking ? I want to switch them to 12/12 on thursday. I broke the tops on thursday that was. I also got spots on leafs. Im gonna try giving calmag ? But Im growing in soil and they allready had food this week. So dont know if wait for next food day before add?
Leaves. Other
Plant. Other
Feeding. Schedule
4y ago
4