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
is it cal def?
ganzigunnu
started grow question 3y ago
all identical environment only single plant do this. I gave plain water.
Solved
Week 4
Leaves. Color - Yellow
Leaves. Color - Dark-brown
likes
Organoman
answered grow question 3y ago
Burning from over feeding. Nothing to do with calcium. 18/6 is best for cannabis, they NEED sleep.
2 likes
Complain
Selected By The Grower
ganzigunnu
answered grow question 3y ago
i fed only plain water. i give low ppfd first month 24h than 18/6. my ppfd so far doesnt exceed 15-20 dli. i make it to stabilize room temperature.
likes
Complain
ganzigunnu
answered grow question 3y ago
and shows slow growth compared to others.
likes
Complain
Similar Grow Questions
Solved
Ciore
Hojas con puntos marron
Por favor que Pasa a mi planta he tenido 2 Semana si medir ph haora he vuelto a medir, no se si ès exceso o falta de algo, la flora muy lenta hojas que se hacen amarilla desde la punta asi a dentro y se secan
Week 9
Leaves. Color - Yellow
5y ago
2
3
Solved
Morpheus
I have uploaded a few more pictures - getting worries as the yellowing is continuing. Any ideas? pH was 5.6 on Saturday when I first mixed the nutes), and then with the air stone has come up to 6.5 or so. I've added a small amount of pH down to temper this back down.
Week 7
Leaves. Color - Yellow
6y ago
1
2
Solved
RandoMan
Nutrition
I was at 800ppm going into flowering and was suffering from a cal mag deficiency. I addded c/m my ppm was up to 1500. Does this sound right? I am doing flood and drain hydroponics. Plant is 2 weeks into flower. What should my ppm be for 3 part nutrient general hydroponics plus CM
Leaves. Color - Dark-brown
2y ago
1
1
Solved
Gongon
Small Yellow spot at the edge of bottom fan leaf
Hi there, I spotted small yellow dots at the edge of bottom fan leaf. Plant looks healthy but this dots makes me worrie, it might be begin of something bad, so far its really small. Does my plant need more N? Or maybe it's because of LED COB light and needs cal mag?
Leaves. Color - Yellow
6y ago
2
2
Solved
Mackorodoo
Why going yellow from inside to outside
Pot leaves turning yellow slowly from the inside and stems lowering in green colour im thinking most likely alittle over nutting along with over watering would like to avoid flushing if possible rh has been a little low but not significantly so ph 6.4-6.6 runoff 6.0-5.8
Leaves. Curl down
Leaves. Color - Yellow
Plant. Other
5y ago
2
4
Solved
Beginner86
brown leaves??? how can me help
what it this. clone‘s not any clone have it
Leaves. Color - Dark-brown
Leaves. Other
4y ago
2
4
Solved
Mekster
Day 13 since flip. Spots on leaves.
Going into week three flower. What are these?
Week 7
Leaves. Color - Dark-brown
2y ago
2
Solved
ganjermaster
Burnt, should I throw it and start from zero?
I have 1 burn auto for excessive light, should I throw this one and start from seed again or maybe flipping to 12/12? The light is farther now but maybe I can do something else than put away my lights.. my current schedule is 18/6 and the plant is around 45-50 days old
Leaves. Curl down
Leaves. Color - Yellow
Plant. Twisted
5y ago
1
6
Solved
Piquillo
Brown spots, droopy leaves
I'm trying to figure out what's wrong with them. Leaves look stiff, droopy and feel a bit dry. Am I overwatering? Potassium deficiency?
Week 5
Leaves. Curl down
Leaves. Color - Dark-brown
5y ago
2
Solved
Dr_Zu
Seedling with yellow and brown tips
Any ideas why only one of the plants has started to turn yellow and brown at the tips?
Week 1
Leaves. Tips - Burnt
Leaves. Color - Yellow
4y ago
1
1
Solved
Sanabassan
Flecken auf den Blättern
Hi Leute kann mir jemand bei meinem Problem helfen . Wie bekomme ich das wieder hin ? PH ist immer bei 6-6.2 Luftfeuchtigkeit schwankt zwischen 55-68% Nährstoffe : das grand Master Schema von Advanced Nuttient
Leaves. Color - Yellow
1y ago
1
Solved
blackcald
Strange yellow spots
Strange yellow spots on top leaves, what am I doing wrong?
Week 3
Leaves. Color - Yellow
6y ago
1
1
Solved
GermanGuerilla420
Lockout or not enough nuts
the plant gets yelloish with brown spots ant brown leave tips i checked the ph an how ever it was about 4.8... i flushed the soil to a ph of about 5.2 and gave her a little feeding. Temps between 23 and 26 c°, the light is very close.. might be to close Its a Autoflower
Leaves. Tips - Burnt
Leaves. Color - Yellow
4y ago
2
2
Solved
supermegadjj
Yellow spots getting worse. First grow.
Leaves yellowing, yellow spots. Flowering stage first grow. +speed autoflower from sweet seeds HELP PLS!mostly newer branches. Leaves seem to have pe colour and are drooping . Stems
Leaves. Tips - Die
Leaves. Curl down
Leaves. Color - Yellow
5y ago
2
Solved
Nomorebush
Yellowing leaves
One of my plants has started yellowing, my pH/ec pen is broken but have been giving same as before 6-6.9ph,can it be lack of nutrients? It's been a little hot but nothing crazy. Other plant that got same water is looking great tho. Why is this one difrent? All answers appreciated
Week 7
Leaves. Color - Yellow
3y ago
2
4
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
2
Solved
VikingFloh420
Proplems with leaves
hi i got a question my plants show yellow leaves or damaged tips anyone knows whats going on? Lamp ts-1000 150w on 45% in the 4 week and only 2 feedings till now
Leaves. Tips - Burnt
Leaves. Color - Yellow
9mo ago
4
5
Solved
elevensixty6
Deficiency?? Excess? Neither?
Grown this strain before and had the same issue.. not sure if its a CalMag deficiency entirely. pH has remained at 6.0-6.5 or so in soil and didnt show signs until recently, seemed to have worsened after just two days of only CalMag and Ro water so I bumped up the bloom nutes.
Week 5
Leaves. Color - Dark-brown
Feeding. Deficiences
4y ago
3
3
Solved
forgettenseedling
Leaves getting brown, can someone help me out? What does the plant need?
Leaves. Color - Dark-brown
Feeding. Deficiences
4y 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
2y ago
2
2