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
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Name the deficiency I belive it to be calcium / ma...
SlaveGr0
started grow question 6y ago
Name the deficiency I belive it to be calcium / magnesium realated. Half the tent is under lec half under led the plants under the led show lighter green leaves and the bronzing first and more profusely
Solved
Week 14
Feeding. Deficiences
likes
Mr_Weeds_Autos
answered grow question 6y ago
It's a Calcium/ Magnesium deficiency, for some reason plants under LED lights crave more Cal-Mag.
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
CHILLING_RACOONS
Big problem: burn tips and spot on Leaves
Hi dear friends! Leaves from this VANILLA KUSH are crispy and they aren't "smooth." since last week I didn't gave any nutrients but only ph water. Syntoms may be a calcium deficiency but I don't know if it is the problem. Please, what I have to do to? 🙏🙏🙏
Week 10
Leaves. Edges burnt
Plant. Stem - Red or purple
Feeding. Deficiences
5y ago
7
6
Solved
BiagioTST42
Urgent help needed: wilting at wk3 STRAWBERRY LEMONADE (BARNEYS)
Plant is left one, 20 days old Evident wilting yesterday night (in trendy way since few days) -Soil (light mix) dry for 1 inch -Added 0,3lt of water with (ml: 0,45-Bio Rizhot. & 0,15 Org BAC) -PH checked IN & OUT: 6< PH <7 Minimal improvement SUGGESTIONS PLS? THANK YOU!
Leaves. Wilting
Feeding. Deficiences
4y ago
1
2
Solved
Playse
Is this the start of a nitrogen toxicity?
Do you guys think that she has received too much nitrogen? The leaves are pretty dark green and shiny...
Week 9
Leaves. Other
Feeding. Deficiences
5y ago
1
1
Solved
Rollex420
Deficiency or light stress?
I start by saying that the light was not close enough to cause stress imo.. was about (30cm) of distance from this plant. it seems that it is more a deficiency in my opinion but I don't know exactly which one.. What do you think about that?
Leaves. Color - Yellow
Leaves. Color - Pale
Feeding. Deficiences
5y ago
2
2
Solved
Cremo
Does it look like nutrient deficiency?
Does it look like nutrient deficiency? It's a hulkberry automatic and I think it seems to like more nutrients than typical automatics. I feed it around 1-1.5m per liter of advanced nutrients micro grow bloom. Water is 5m7 in dwc. Any advice is greatly appreciated. :) xoxo
Feeding. Deficiences
5y ago
3
5
Solved
AutoGOAT
Help
Hi. So im using a soil(plagron batmix) which says i do not have to feed the plant for 6 weeks. I looked up a couple videos and they say that as an organic grower, i dont have to ph my water. But im still having some kind of deficiency. So what do i do? Thanks a lot!
Feeding. Deficiences
4y ago
2
1
Solved
SweetJB
What am I facing? Plant is getting worst everyday, and I can't find the reason why. Thought it was a calmag def, but now I don't really now.
When I switched to flower, I started watching some rusty spots on the leaves of the gelato. After doing some research, I thought I was facing a calmag deficiency, and starting adding some calmag. Plant is getting worst, I flushed the roots and water between 5.8 and 6 as canna ask
Week 10
Leaves. Edges burnt
Feeding. Deficiences
6y ago
5
3
Solved
Kripoulas
Deficiencies while in late flowering during flushing period
There is deficiency going on (looks like cal) she is an auto flowering strain in her 9th week and been flushed for a week now. Should I give her cal/mag and stop the flushing or is it too late to deal with that? She looks like she will be ready to chop in a week or so.
Leaves. Color - Dark-brown
Setup. Strain - Autoflowering
Feeding. Deficiences
5y ago
4
2
Solved
WulfBlud
Fade or deficiency? Day 62
Day 62, starting to see some slight discoloration in some of the older large fan leaves. I’m worried they are either burning or it is just a natural fade and I should let her ride I will be traveling on Monday for the week so wanted to make sure to do anything that needs doing
Week 8
Leaves. Color - Pale
Feeding. Deficiences
3y ago
4
Solved
bang123
LEAVES CENTER GETTING PALE ?
I need your help. Nutrient issues or lock... What's your diagnosis OGs ? But I'd like to fix this before I go 12X12. What's do you think it is guys? I got these 3 culprits in mind: nitrogen, iron , sulfur ? 100% organic, water PH: 6:3 all along. Aloe/coconut + FF Big Bloom.
Leaves. Color - Pale
Feeding. Deficiences
1y ago
1
1
Solved
Maskedcucumber
Iron and potassium deficiency ?
Hello, it looks like iron and potassium deficiency, what do you think ? I'm just a noob.
Week 3
Leaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
5
3
Solved
Faegrows
Ppm in runoff higher than feeding
The run off ppm is around 500 and when I watered it it was around 200 ppm. Ph levels are fine. Does this mean it’s not getting the nutrients it needs? How can I solve this?
Feeding. Deficiences
5y ago
2
2
Solved
LoganatorDude
Nutrient Correction?
04/21 - Noticing some possible nutrient issues with the Fruity Pebbles for several days now. She has much more of a pale green color than the others. I’m thinking maybe just a super small amount of Amino Acids with a little Epsom Salt? Maybe fulvic acid and some calcium?
Leaves. Color - Pale
Feeding. Deficiences
4y ago
1
1
Solved
DBQush
Potential causes and fixes for magnesium deficiency
My runoff EC and PH are normal and I am adding calmag to every feeding so not sure why I might have magnesium deficiencies. Aside from giving them just a calmag feeding and foliars, any tips on what I can do and why this is even happening?
Leaves. Color - Yellow
Feeding. Deficiences
Techniques. Main-lining
3y ago
4
Solved
AlienScrOG
Cal mag ... I this grow i use different water start .... 150ppm add water home (no Cl)water home Is 1ec 😵.. a Little bit with cal-mag ??
Week 8
Leaves. Color - Mottling
Feeding. Deficiences
6y ago
4
4
Solved
Skinnytalls420
Help!!!
My 2nd auto grow isn’t going Aswell as my first would really appreciate if u guys could check my last video of my Afghan kush auto diary and tell me what I can do to make things better thanks
Feeding. Deficiences
4y ago
1
1
Solved
Stonehigh
Epsom salt as fertilizer. Whats your take on this folks?
Epsom salt will not release hydrogen ions in water so my guess is that it will thus not affect PH. Making it a nice controllable source of Mg that would be not negligible right? How effective would that be to treat Mg deficiencies? Anyone has experience with this?
Feeding. Deficiences
3y ago
1
2
Solved
TschupZ
Possible lockout, what could've caused it, all 3 get the same water & feeding
Hey, i'm new as grower and really glad about any tipps I got some rusty spots + pale looking, tested the runoff and need help reconstructing on what went wrong IN: 2l Osmosis + 0,6ml calmag + ph down 7 - 6,5 -Ph: 6,5 -ec: 540 OUT: ca 200ml -Ph: 5 -ec: 630
Leaves. Color - Dark-brown
Setup. Strain - Autoflowering
Feeding. Deficiences
1y ago
5
4
Solved
DarkOG
Deficiency?
Would it be a nutrient dificiency?
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
2
3
Solved
Snaqq
phosphorus and boron anomaly
Could someone please explain the precise mechanism underlying the phosphorus anomaly? As anticipated, availability decreases with increasing pH, yet it exhibits a sudden surge at pH 8.5. What is the exact (bio)chemical rationale behind this phenomenon? Boron has a similar pattern
Feeding. Chemical composition
Feeding. Deficiences
Feeding. Other
1y ago
33
17