Threads is in beta — try the new feed
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Threads
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?
TheGourmetWeed
started grow question 5y ago
I've been using calmag on the grow, so it shouldn't be that. Any ideas?
Open
Leaves. Color · Mottling
likes
Answer
The8thChevron
answered grow question 5y ago
As always, check your pH levels before trying to fix any nute issues 👌
likes
Complain
The8thChevron
answered grow question 5y ago
What stage are your plants in? If in mid to late flower, I would say you're using too many bloom nutes and locking out calcium that way. Seems to be a common problem.
likes
Complain
Similar Grow Questions
Solved
ProfessorSkiSlopes
Hi there, does anyone have any idea what the slight mottling is on the leaves of two of my plants. There are close-up pictures under Day 27 in Week 4. The discolouration is present across multiple leaves, but seems to only be happening to two plants out of 8. Thanks!
Week 4
Leaves. Color · Mottling
7y ago
1
1
Solved
MoWax
Yellow spots and dry ends on leaves
Hello! What could be wrong with the plant on the left? What do the spots on the leaves indicate? They are 17 days old.. Thanks for the info
Leaves. Dropping off
Leaves. Color · Yellow
Leaves. Color · Mottling
3y ago
2
2
Solved
GrowingGrannie
What's wrong?!
Can anyone tell me what's going on with this? Leaves are getting white markings and are fairly limp to the touch (although they are not drooping). I've checked underneath and there are no signs of any bugs... nothing flying through the air... All other plants are ok!
Leaves. Color · Mottling
5y ago
1
3
Solved
bbkaldo
Is it a Cal-mag deficiency? From total newbie point of view.
I really need help with these dots on leaves - any ideas, pros, masters, exp. amateurs, anyone? I had no problems just till today on 2 out of 4 trees. (only low humidity in germination, but they lived through) Photos taken few hours ago, and now it is like 50% more of it. WTH?😓
Week 3
Leaves. Color · Mottling
Leaves. Other
3y ago
2
1
Solved
ValleoGrow
Brownish spots on leaves, tried calmag and removed alot of sick leaves, but They keep coming on other leaves see pics week 6
Week 6
Leaves. Color · Mottling
7y ago
2
2
Solved
BelSun_420
Normal or should I be careful?🤔
First time I see these little dots on the leaves, can anyone identify them or is it nothing to worry about, as I'm thinking? 🧐🤔
Leaves. Color · Mottling
2y ago
2
Solved
osmrducks
Brown Spots and Vein
What is the cause of this on the leaf and the inner vein of this seedling? Just gave them a small dose of Great White.
Leaves. Color · Mottling
6y ago
1
1
Solved
Filippo33
Rostfelcken
I found small spots (similar to rust spots) on the 2 ladies now. I saw something on the lower leaves. Can someone give me advice on what this could be or how I can get it under control so it doesn't spread further? Thanks in advance!
Week 2
Leaves. Color · Mottling
6y ago
1
1
Solved
Kommandant666
Light spots on upper leaves
So I noticed some light spotting/discolouration on the upper leaves of Samus. I've never seen anything like it before but is it normal or something to freak out about? Are the leaves mottling?
Week 5
Leaves. Color · Mottling
4y ago
5
6
Solved
ValleoGrow
Hey i noticed some wierd brown looking spots on some of my flowers, what could this be? See photo Day 68 week 9
Week 9
Leaves. Color · Mottling
7y ago
5
3
Solved
Chamalla
Does the leaf in the close-up picture look like the beginning stages of a spider mite infestation to you?
Week 3
Leaves. Color · Mottling
7y ago
1
1
Solved
Mozartek
Manchas en hoja
Hello! These spots appeared on a leaf of a GG#4 from Zamnesia in its fifth week of vegetative growth. It's not something I'm worried about, as the plant looks healthy and is growing vigorously. But I've never seen this type of spot before and I'd like to know the possible reasons for it.
… Show more
Leaves. Color · Yellow
Leaves. Color · Pale
Leaves. Color · Mottling
2y ago
3
4
Solved
Dirty_Hippy
Brown spots followed by necrosis on Mandarin Sunset.
Any idea what could be causing this necrosis on my leaves? Starts with the spots and grows to crisp up the leaf. My soil should have plenty of calcium and magnesium. Happened once before on Gelato and never deciphered it.
Week 10
Leaves. Color · Mottling
5y ago
11
7
Solved
Misanthrope
Leaf damage/discolouration
The yellowing is from an earlier issue but now I'm noticing brown spots and the leaves curling up, some getting crispy-ish. I recently lowered the lights a few inches, knowing I was pushing the safe limits. Is this from the lights or is more likely a nutrient/pH imbalance?
Week 11
Leaves. Curl up
Leaves. Color · Dark-brown
Leaves. Color · Mottling
4y ago
2
2
Solved
Spencimelia
Nute issues... Any ideas?
Nute issues.. any ideas? It looks like and iron deficiency, Cal-mag has massively helped throughout its life but still get it on the older leaves. Plant looks healthy otherwise. Maybe PH too hight or too low... I can almost work it out but for a quick look from diff eyes
Week 10
Leaves. Color · Mottling
1y ago
8
7
Solved
Germano
Week 9, my plants seems like they have manganese Excess, i flushed them but it is just getting worse ,and they gone lil bit pale they lost thier green color ,i do why all this happening !👹
Week 9
Leaves. Color · Mottling
7y ago
3
2
Solved
Cannadisco
- What are the silver/grey spots you see on the Cookies? No enough nutrition?
Week 7
Leaves. Color · Mottling
7y ago
1
3
Solved
Scooby_Doo
Plants deteriorating rapidly, pls help
Plants not looking good! Help! White tips at the end. Brown patches. Leaves curling. I've been feeding it 0.5L Advanced Nutrients Coco Big Buds. The light was fairly close, at 30cm. I've raised the lights to 60cm. It was also very humid, so I've opened the air vents .
Leaves. Curl up
Leaves. Color · Yellow
Leaves. Color · Mottling
5y ago
3
Solved
Cheech
Blätter bekommen gelb braune flecken
Does anyone have an idea what’s wrong with my plants? They got these spots really quickly after watering yesterday. Could they have gotten too much fertilizer?
Leaves. Color · Mottling
6y ago
1
3
Solved
Grrrower
strange spots on the leaves
what is happening? (I haven't started with fertilizers yet)
Week 3
Leaves. Color · Mottling
Leaves. Other
6y ago
5
6