The Grow Awards 2026 š
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
Is this a calmag problem?
Slickchigdog
started grow question 4mo ago
What problem do i have? Is it calmag? Help please. I grow in lightlix biobizz and with biobizz fertilizer
Solved
Leaves. Color - Black or grey
likes
Pi_growing
answered grow question 4mo ago
This is not just cal mag. How much watt led used How much cm from plant and how much %? Did you use 100% of shema on every watering?
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
Australianbuds
Leaves turning funny
Hello can anybody please tell me what this is and the cause plese for the leaves to be discoloured and dying ogf
Leaves. Color - Black or grey
2y ago
1
1
Solved
JarJarGreens
Leaf color. Day 14.
The coloration on my first leaves is worrying me. First grow. I really don't want to stunt her. G&B potting soil, filtered soft water, Myco+ in my water, 100w AC infinity Ionboard.
Week 1
Leaves. Color - Black or grey
3y ago
3
1
Solved
organigrower69
Discoloration
Two of my leaves have serious discoloration coming from the middle of the leaf
Leaves. Color - Black or grey
5y ago
2
Solved
alhambra
First time grower in soil - Plant problem
I am a first time grower in soil. This plant is an autoflower and is 25 days into flowering. Can someone please help diagnose this? All the leaves are starting to turn yellow as well.
Leaves. Color - Pale
Leaves. Color - Black or grey
3y ago
5
3
Solved
Mitch
Nutrient burn
How can I fix a nutrient burn on a seedling?
Leaves. Color - Black or grey
5y ago
1
1
Solved
Indica_Jones
what is this ?
Ist alles okay mit den Pflanzen ?
Leaves. Color - Black or grey
5y ago
2
3
Solved
420throwaw4y
Is this sign of nutrient lockout? I have moved her to a bigger pot now, that said Iām worried Iāve been testing my PH wrong, I uploaded a pic (day 26) is she starving? Up til now I havenāt fed her anything but water
Week 5
Leaves. Color - Black or grey
7y ago
2
2
Solved
Romobo16
Black spots
It's the last clon from that strain that I have (There are no longer seeds for sale) after saving her (She was in terrible conditions) she was growing great this last 5 days until yesterdays that I saw this black spots. PPM 670-PH 5.78-WaterT 68.7-AirT 71.6-PPFD 120-Humidity80%
Leaves. Curl up
Leaves. Color - Black or grey
1y ago
2
Solved
HomeGrowBro
Late flowering damaged leaves
Hi. Should I be worried? What action must I take. I dont want to spoil this grow. Thanks
Week 15
Leaves. Color - Black or grey
4y ago
1
3
Solved
Portnugs
Silverish hue to leaves
So I have a slight change in color on one of my girls, leaves seem to be getting a bit gray very uniform color change but only on some of the leaves. Im not sure if this symptom is due to nutrients at first I thought mold but it's very uniform. Please anyone have tips?
Leaves. Color - Black or grey
4y ago
5
5
Solved
Indica_Monster
IWhat does the tree say?
What does the tree say . Am I over-fertilizing?
Week 1
Leaves. Color - Black or grey
3y ago
5
4
Solved
ZigkGrow
Leaves are getting dark
Leaves are getting a little dark and cotyledon seems a little sad. I suspect it is caused by not watering her enough (i was only spraying her with water the first 4days) Any advice?š
Week 1
Leaves. Color - Dark-purple
Leaves. Color - Black or grey
5y ago
1
1
Solved
portcityplug
Flower development
I'm starting my week 3 of flower I'm starting to notice inside of my canopy some of my leaves in Bud sites are getting very wilted and going black could this be the start of a mold or is this a natural thing should I remove anything that looks like this ? Also my humidity is 70
Leaves. Color - Black or grey
5y ago
1
1
Solved
The_Wanderer
Cold or hot extraction for antioxidants?
What preserves anthocyanins in our cannabis leaves better? If we want the antioxidant properties so we can use them for our benefit, which is better? Cold gentle extraction or use of heat? A traditional african practice centuries old makes tea from leaves to treat certain illness
Leaves. Color - Black or grey
1mo ago
4
3
Solved
Organic_LarF
1 branch doing strange
The entire plant is looking fantastic, just this 1 branch, the lowest or first 1 to form has never grown like it supposed to. The other 1 is allready gone for 1 month. Ive pulled it of because I dont like the colour of those leafs.
Week 11
Leaves. Color - Black or grey
6y ago
1
1
Solved
Dippp
Problem with plants in the 3rd week of vegetation.
Hello everyone, I am new grower, in the 3rd week, I started having issues with the leaves. Does anyone have a diagnosis for this? I am using I am using Advanced Nutrients (Coco Grow A and B, B-52, Voodoo Juice) Coco Soil Temp: ~26 C Rh: 60-65% Feminized seeds Thanks :D
Leaves. Tips - Burnt
Leaves. Curl down
Leaves. Color - Black or grey
1y ago
1
Solved
baddawgLLL
a black spot
Suddenly, a very small black spot appeared on the leaves of the plant, very, very small. helpļ¼
Leaves. Color - Black or grey
4y ago
3
3
Solved
Unkraut
What Deficiency?
What deficiency does this plant have? I have 15 plants inside this tent, all get the same nutes, all look great but only this one has these grey marks on the lower leaves
Leaves. Color - Black or grey
5y ago
1
3
Solved
Indica_Jones
Purpel oder mengel ?
Prupeln meine Goriilla Zkittlez oder ist das ein Mangel oder Problem ?
Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
5y ago
2
2
Solved
The_Wanderer
Help! Black Weed!
Help! Almost ready to harvest on the winter solstice. Black weed
Leaves. Color - Black or grey
1mo ago
9
8