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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
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Organoman
answered grow question 3y ago
Burning from over feeding. Nothing to do with calcium. 18/6 is best for cannabis, they NEED sleep.
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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.
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ganzigunnu
answered grow question 3y ago
and shows slow growth compared to others.
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Similar Grow Questions
Solved
CrankledLarkus
Ongoing brown and yellow patches forming in week 6 of flower
I've also noticed today a couple leaves looked wet, so tried to wipe it off but that did nothing. I took 2 pictures of the same leaf at slightly different angles to see the shine. It's only the skunk effected (closed similar question prematurely in skunks diary)
Week 14
Leaves. Color · Yellow
Leaves. Color · Dark-brown
7y ago
3
2
Solved
Dillsnills
Can someone plzz help with what is going on?
Can someone plzz help me w what's going on, not sure if it has to do with nute deficiency,nute burn, ph or what it's only w 2 of my plants a lemon autoseedmans Orange Sherbert Auto fast buds, should I trim the leaves that r affected or in general what can I do. Ph 6.5 wk6flowerin
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
1
2
Solved
SupportiveMango
What nutrient deficiency is this?
What nutrient deficiency is this? Or is it nutrient burn? I'm watering with 5.5 PH using half strength Nutes, Root booster & Calmag. I don't think it relates to spiders mites since I can't see any with my 30x magnifier. Thank you so much in advance.
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Other. Bugs
5y ago
3
3
Solved
Grazynka
Flush or what to do ?
Advice please. I watered yesterday but the stains on the leaves are getting worse. Now I don't know if it is deficiency of cal n mag due to nutritient lock out which might be due to ph being off as I have 5 reders and all of them show a different thing. 🤦♀️...or it is it rust?
Week 7
Leaves. Tips · Burnt
Leaves. Color · Yellow
Leaves. Color · Dark-brown
4y ago
1
1
Solved
Bigbugs1
Help me
I use biobizz fertilizer. I'm moving forward by rising step by step per pot and doing 2 full 1 empty watering, I'm doing 3.5lt irrigation, my latest fertilizer table grow 3ml/L bloom 3ml/L top max 1ml/L alga a mic 3ml/L cal mag 1ml/L Ph6.4, but the problem seems to me like calciu
Leaves. Tips · Die
Leaves. Color · Yellow
Leaves. Color · Dark-brown
4y ago
3
Solved
Jannis_Botanicum
Yellow/Brownish colored tips of leaves.
So, my girl now is 11 days old, while i was looking at here i noticed that the tips of the second pair of true leaves is soightly yellow/brownish colored, im worried for my plant. Could it be a wind burn ? I have a ventilator in my tent which was blowing at here. I moved it now.
Week 2
Leaves. Edges burnt
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
2
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
7y ago
2
Solved
IceeTea31
Help
What is the issue? do they need calmag or should i flush them? if i should flush them what ph should this water have?
Leaves. Tips · Burnt
Leaves. Color · Yellow
Leaves. Color · Dark-brown
2y ago
5
5
Solved
Lapaluma420ohe
Verfärbte Blätter
Discolored and partially dried leaves on my autoflower in week 9. Nutrient deficiency, nutrient excess, too much light? Rough with biobizz biogrow, biobloom, and topmax. What could it be?
Leaves. Color · Yellow
Leaves. Color · Dark-brown
2y ago
3
3
Solved
ThcSrb
Spots on leaves and little twisted...
Spots started slowly showing when it had a different 600w light, too much heat back then, this started a little "save operation" changed light, made the plants look a bit healthier but now it looks like the spots have spread and also affected the leaves above... Are they healthy?
Week 3
Leaves. Twisted
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
1
5
Solved
RecordSet
Brown Spots Diagnosis
I need some help diagnosing these brown spots please! I am considering light burn, calcium deficiency or maybe PH imbalance. PH is usually around 6.8, humidity near 60%, temps averaging 27°C/81 F, light distance at 25 cm, nutes and water schedule is disclaimed on my current grow
Leaves. Tips · Burnt
Leaves. Color · Yellow
Leaves. Color · Dark-brown
2y ago
2
3
Solved
KabakciLar
yellow leaves and brown leaves
Leaves in 1 pot are turning yellow and dark brown burns are occurring help please https://ibb.co/yhyTtMh https://ibb.co/2YkHksM https://ibb.co/Kwb5fsd https://ibb.co/nw4ntyP https://ibb.co/44JtDz5
Leaves. Color · Yellow
Leaves. Color · Dark-brown
4y ago
3
3
Solved
Stixere
Leaves
What can be wrong and what should I do?Biobizz fertilizers(Grow, Bloom, Topmax). 6 weeks.
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
2
Solved
Shagrath
Can someone tell me what is this? I think the reason is that my nutrients are not balanced but I have no clue what deficiency this is, It could be so much easier to know the reason for this if I know what this is. pH pretty stable 5.8 Ec 1.5. Thanks!
Week 3
Leaves. Color · Yellow
Leaves. Color · Dark-brown
7y ago
6
4
Solved
koronkonko
What is this symptom? - Leaves
Hi Everyone! my girl is getting more and more yellow with brown dots/spots, starts symptoms one week ago. I gave her CalMag five days ago but is not better. Please, help. What is it? More photo in diary,
Week 8
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
1
2
Solved
CRIM_mir
Day 46 NL Auto: Multiple Leaf Problems Developing after Possible Nute Lock and 2x Flushing — Should I feed again @ lower TDS? What’s wrong?
Hi growmies! Wks 3-5: overfed 3 plants Wk 6: TDS after plain h20 1800-2300ppm; 2 flushes w/ gallon h20/plant Wk 7: TDS readings 500-800pp, but 1 plant showing multiple types of leaf problems I thought I fixed it, but now I don’t know what’s up or what to do? Thoughts?
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Leaves. Color · Mottling
6y ago
5
3
Solved
Splifflicious
Yellow bottom leaves/brown spots on bottom leaves
Hi guys, So 4 or 5 bottom leaves of my 7thWeek autoflower looked like this and I ripped them off. Is that ok or did I harm her? Anyway, is that a Calcium def? Should I give her some CalMag? Could it be something else? Besides this, the general condition of the plant is good. Tx!
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Leaves. Other
6y ago
3
Solved
greenthumbartisan
Look like Zinc and Calcium deficiency? Watering with 5.8/5.9pH, 2.06 EC (Runoff 5.8pH, 0.78 EC) Few leaves had small nutrient burn on the tips earlier this week. Nutrient burn appears to have tapered off.
Week 6
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
2
5
Solved
Ionic20
Advice please :)
This is 24 hours later. Should I just give some calmag now even tho the soil is still damp?
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
3
3
Solved
CreamOfTheCrop
Brown/Grey spots on the leaves
Hey, I hope this is my last question for this grow :P I've noticed some brown/grey spots on the yellowing leaves, what could they be, deficiencies or sunburn? I'm still feeding the plant with nutes, but the next watering will be a flush, so I didn't expect discoloring before that
Week 11
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Leaves. Color · Black or grey
6y ago
1
1