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Back to Grow Questions
Calmag issues
Ichabod1905
started grow question 3y ago
Hi all. Just a quick one. Do I need to use calmag on every watering using a sf4000. It's my first time using a led. Thanks for any advice. 👍🏻👍🏻
Solved
Feeding. Deficiences
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Roberts
answered grow question 3y ago
Depends If coco is present in your substrate. If so then I would use it more often then not coco absorbs cal mag.
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Selected By The Grower
Similar Grow Questions
Solved
Doraemon
Leaves damage: PH levels from nutes?
Chemical question: growing 3 autos since 3 weeks, last 2 days had symptoms of deficiency after adding 1ml/L of Calmag, BioHeaven and B'cuzz root stimulator, soil is Kilomix which has PH 5.7, tap water has PH 8.1, is it possible that nutes made PH that acid/basic to hurt plant?
Leaves. Color - Mottling
Feeding. Deficiences
5y ago
1
1
Solved
Breakupp
feed when still moist or wait until completely dry.
Since this one seedling show brown spots/ lack of nuts, should i start feeding now (soiless medium) while still moist.. or wait until completely dry?
Week 2
Feeding. Deficiences
5y ago
2
5
Solved
ZigkGrow
Spraying the leaves
While I was checking my plant I saw these “black stains” like the plant is “half-bitten/scorched”.Is it possible to burn my leaves and create this effect after spraying them with nutes. Blacks spots were created today after I sprayed them and there were drops on leaves for hours
Week 3
Leaves. Other
Other. General questions
Feeding. Deficiences
5y ago
2
Solved
Alwa26
What’s your opinion on this one?
What you think about it? Is she getting too much? I’m not giving her too much in my opinion. Her stems are purple and the leaves are yellowing a bit. Watering always with ph 6,3-6,5. Thanks for your help! Happy growing!
Week 7
Leaves. Color - Yellow
Leaves. Color - Pale
Feeding. Deficiences
4y ago
1
Solved
timber03
Too little calcium in early flower?
I’m in the early weeks of flower and am seeing this happening. I thought it was due to an attempt at foliar feeding, but those initial problem leaves have been trimmed. Is this a calcium deficiency, and if so, how can I address it? (NLS top dress/coconut powder/recharge)
Week 5
Leaves. Other
Feeding. Deficiences
3y ago
3
3
Solved
Dillsnills
Reasons for leaves being light green yellowish???
Wondering what's going on with this seedling, the leaves r a very light yellowish green, fox farm happy frog coco coir, perlite mix about 60/30/10 ratio. LSD-25 auto from fastbuds, 1200wt led, 77day69night, 60%rh, 6 days old.growing in 3gl air pot advice input greatly appreciated
Leaves. Color - Pale
Setup. Strain - Autoflowering
Feeding. Deficiences
4y ago
4
4
Solved
Aonjacktallbeck
Ph problem?
Is this a ph problem or something else? My meter doesn’t seem to be accurate. I’ve been feeding top crop veg once a week and ph 6.3 (soil), my run off was a bit high, a gave just plain water (ph 7) but no help. Photos from two plants. Heeelp
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
1
1
Solved
MrGreenMan
What is causing PK deficiency signs on mid leaves? Too little Calcium causing lockout??
Hey everyone, in mid and late flowering with my autos, all experiencing similar problems and I’m inclined to believe it could be due to a lack of Calcium? Could a Ca deficient plant cause these symptoms which resemble a PK deficiency?? I’m 100% adding enough bloom
Week 11
Feeding. Deficiences
5y ago
5
Solved
Naturalist
Regarding the tips Normal or too much Bloom?
I'm dosing at 60% of the feed chart but I'm not sure if I might be ODing the PH, think the LSDs have been yellowing a bit so I've boosted the FP a bit.
Week 14
Feeding. Deficiences
5y ago
1
3
Solved
Scrubs1983
Is this a nutrient defiecency or nutes burn?
Hi.. Im grwing an auto sweet cbd day 46 i ve noticed lately some yellowing tips on new growth and slight intervenal chlorosis on older leaves ...currently feedin with npk high ph every other week and malasses plus seaweed the other please advice light 250 w 30_35 cm distance
Feeding. Deficiences
5y ago
3
4
Solved
SgtDoofy
How to fix yellow leaves, brown spots.
What should I do about these brown spots that are overtaking my leaves? There's also yellowing on the lower, older fan leaves.
Week 6
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
2y ago
5
6
Solved
buddhi_coop
Seedling Deficiencies
How do I fix a deficiency in a seedling? I’m growing organically so any organic suggestions you have I’d appreciate a lot!
Setup. Seedling
Feeding. Deficiences
Feeding. Other
4y ago
2
2
Solved
Ionic20
Phosphorus deficiency getting worse?
Near enough every leaf is damaged now, all the new growth appears to be dammaged too and very yellow. Am I going to lose my first plants?
Leaves. Curl down
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
8
9
Solved
Calamaris
Forgot to alter pH
Hi I forgot to alter the pH. I already have some issues (I think pH? Check picture). What’s worse, overwatering or too high pH? Do I need to flush ASAP or wait till next watering cycle? The pH of the water I used is 7,7 and I have organic potting soil so is it a big deal or not?
Feeding. Deficiences
Feeding. Other
5y ago
4
4
Solved
MrGreen92
Is this definitely CalMag deficiency? Check diary for video.
Before I go to over the top with the CalMag in a stupid attempt to nurse my plants back to health I just want to know for certain what it is. The leaves are clawing, bronze spots everywhere but the smallest of the 3 doesn't seem to be suffering as much.. what is it?!
Week 8
Feeding. Deficiences
5y ago
2
7
Solved
Grow3rPT
Será uma deficiência de cobre?
Ola, sem ser a questão que já não consigo subir mais os leds e as plantas já estão a mostrar sinais de stress por causa da luz. Agora apareceu me uma das plantas assim, com as pontas amarelas mas a ficar maior. Fiz um flush para limpar, pois penso que seja nutrientes a mais.
Week 6
Feeding. Deficiences
4y ago
13
6
Solved
MrBz21
pH is 5.5 but i have nutrients deficiency. Can it be the cold?
One of my plants (in soil) has yellow leaves and brown spots, it is possible that it lacks Ca and Mg, but it's pH is 5.5. I wonder if this nutrient deficiency is caused by cold water (now I'm using it warm and waiting), low temperature or high humidity.
Feeding. Deficiences
4y ago
1
4
Solved
Lazarus42069
Leaves yellowing during pre flower flush
What could these leaves mean
Feeding. Deficiences
3y ago
1
3
Solved
MBnVA
Help!! Deficiencies? Nutes? Progress?
Looking for advice on all! Yellowing from bottom up..they have a ways to go as I'm on week 6-7. I have the FoxFarm trio and plan to go about 1/3 of recommended dosage according to their chart..I started them but maybe early as I'm using FoxFarm soil and it might have been too muc
Week 9
Leaves. Dropping off
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
4
3
Solved
PenguHB
Cal-mag deficiency?
Hi guys, I think it's magnesium deficiency (early flowering). I have also noticed a few small burnt spots on the leaves. Is this time for cal-mag? Or am I reading this wrong?
Leaves. Color - Pale
Feeding. Deficiences
4y ago
2
3