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
cal and mag canna coco
Smokeyboar
started grow question 6y ago
Leafs I think its cal and mag but unsure. If it was how do I correct it. Do I say flush with 10 20 liters and then give it 1 mill cal and mag per litrr all canna nutes I use
Solved
Leaves. Color - Dark-brown
likes
GMSgrows
answered grow question 6y ago
About 3 weeks left, I really wouldnt worry to much. If your still watering at 5.9 I would increase to 6.3 for this stage of flower. Cheers
likes
Complain
Selected By The Grower
Similar Grow Questions
Solved
Cana_Gen
Weird burn
Thought I had a calcium deficiency but now I’m not so sure. Could have got a bit too much direct sun out of the tent. Any ideas on this ?
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
1
1
Solved
Cloudbutter
Brown spots on leaves
Any thoughts on these brown spots? They have popped up on a few leaves on the same plant (Amnesia).
Week 9
Leaves. Color - Dark-brown
6y ago
1
1
Solved
Mordeloth
Brown rusty spots
Hi guys ! I got somes wierds spots like rust brown ish on the 2nd week of veg in autoflower. I didnt feed them a lot before ( like 1/8 of the reciepe ). Its only on the 2 bottom leaves. 26 degre 60-65% humidity purple lemonade auto fastbud
Leaves. Color - Dark-brown
5y ago
1
4
Solved
EXZELENS
What kind of excess/deficiency is that?
She is now on day 16. It showed up today when I watered with 1ml of calmag, 0.5ml of fish-mix and 1ml of bio-heaven. Any info or advices would be great, thanks!
Week 2
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
Leaves. Other
6y ago
2
1
Solved
GracelessGardens
Browning leaves?
What's up with these fan leaves? I'm starting to notice some light brown hues in a couple, mostly closer to the bottom of the plant. Anything to worry about?
Week 6
Leaves. Color - Dark-brown
4y ago
3
Solved
Someboty
Brown Leafs?
What is going on here? i saw that my plant got some issues with its leaves. I got my self Bio Bloom from bio bizz my friend told me it could help but it is already day 3 and it did not get better. what should i do?
Leaves. Color - Dark-brown
Techniques. Defoliation
2y ago
1
4
Solved
LeCuack
No se porque se torno amarilla ec esta normal y ph también. Luz se subio para prevenir quema.
Week 8
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
2
2
Solved
GreenLiving
Browning leaves sections of leaf surface discoloured
Day 18 leaf worries, browning areas, slightly metallic shine. I think from reading it might possibly be a phosphorus deficiency but I’m not certain so though I’d ask for advice. Thank you for your time and all answers are appreciated. Have a great day!
Week 2
Leaves. Color - Dark-brown
4y ago
2
1
Solved
Zz066
Does she has phosphorus deficiency or this is another problem?
Week 11
Leaves. Color - Dark-brown
7y ago
5
3
Solved
Aleatoric
Possibly Potassium Deficient? Based on ALL the pics I could find, but not sure.
I noticed these brown splotches and leaf edges on one area bud and pistils of my Orange Sherbet last night. Based on what I can find online, this might be potassium deficiency? This is mostly on one spot near darkest edge when tent closed. Thanks!
Week 5
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
2y ago
3
3
Solved
Jgrowing420
Hilfe!!
Leaves. Color - Dark-brown
1y ago
3
4
Solved
noak47
Nutrient burn?
Hi guys i really need some help right now my plant have badly issue on leaf but the plant have still growing well and root is fine pls give me advice i have down ec level from 1.9 to 1.2
Week 11
Leaves. Color - Dark-brown
6y ago
3
2
Solved
nectarinepasta
Small brown spots on certain leaves
Some leaves are showing small brown spots. Around 5% leaves affected and all are close to each other. Can this be an infection? Otherwise plant looks healthy
Week 5
Leaves. Color - Dark-brown
Leaves. Other
5y ago
2
2
Solved
Myrcene
Critical Orange Punch Leaves issue
I have several dots on leaves of the COP, plus she is getting brown, I thought of overwatering so I calmed it, but the problem continued and in worst, so it can be mites or trips, so I bought cannacure, but still nothing changed, so I wonder what is the issue. help apreciated
Week 3
Leaves. Color - Dark-brown
4y ago
2
2
Solved
antekirtt
End of Cycle or something to be afraid
Hi everyone, I think the brown leaves just reflect the end of cycle (WG started flushing 4 days ago, DSD33 today). I don't see signs of mold or something rotting, brown leaves do not detach, both plants show already some amber trichomes. What do you think?
Week 6
Leaves. Color - Dark-brown
4y ago
2
8
Solved
KOKOK
Help my plant
Hey, i see something wrong with my plant, untill Day 10 she was under the cfl lamp n every thing was ok, at the Day 11 i switched the light to LEd and this happend:( İ noticed when i compare the photos of the day 11 with Day 10, please help me im nervous, Thanks. What you think?
Week 2
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
Leaves. Color - Mottling
5y ago
3
3
Solved
NoFaceNoName461
Leaves problem at end stage
Hi Guys, Once agiam I need your help, I’m at almost the end of the stage of Green gelato auto, And suddenly the top leaves started first to get kind of Bronze colour and now it’s even getting worst, What’s should I do and what might be the problem?
Leaves. Color - Dark-brown
4y ago
3
3
Solved
MediciGrade
Brown spots and yellowing pictured above. My best guess is a Cal/Mag deficiency. Was feeding Botanicare Cal-Mag Plus at 1 ml/l up until ~2 weeks ago (friend has been watering while I was out of town). Before I feed her, any advice on what the problem is and how to correct it?
Week 14
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
2
Solved
NIagaraFalls420
Deficiency issue/problem with leaves
Any idea what problem I’m having with my plant/leaves? I’m guessing some type of deficiency because I’ve only fed once and it was a few weeks ago. (Check photos in most recent week). Any advice/ tips would be awesome, thanks!
Week 7
Leaves. Wilting
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
3
3
Solved
GrowerNL
Leaf brown spot
there is something wrong with my leaf here i left it for 5 hours and then i saw this
Week 3
Leaves. Color - Dark-brown
6y ago
2
4