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Back to Grow Questions
Excess or lack of nutrients?
Willyweed10
started grow question 6y ago
the older leaves are not dark green but light green with burnt tips and sunburn spots. use of light mix plagron with bloom algae. 1.5 ml per half liter of water for two times a week and once only tap water.
Solved
Leaves. Color · Yellow
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CRiSPrGrow
answered grow question 6y ago
that's simple calcium deficiency, you always need cal mag when you grow indoors. hope this helps ! 🚀
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Selected By The Grower
Similar Grow Questions
Solved
dusterp
Calmag Deficiency? Yellow Spots
Last res change I saw some yellow/brown spots on the fan leaves up where the main cola was getting too close to the light. Is this a calmag deficiency or light too close? I moved the light up to the top of my tent with zip ties and got back several needed inches. See pics.
Week 6
Leaves. Color · Yellow
6y ago
2
3
Solved
Greenfingers1
Some of the tips of the leafs are turning yellow???
Week 1
Leaves. Color · Yellow
8y ago
3
3
Solved
Mr_Haze
Light green/yellow on seedling leaves
Light green/yellow appearing on my little seedlings leaves. Im not sure what it is but they do look healthy and in shape. Can anyone give any insight on this appearance ?
Leaves. Color · Yellow
6y ago
1
1
Solved
ukterpdoc
Is this cal mag drama
My friends hope lifes good and your nugs are frosty.Please tell me this looks like my slurricane seedlings got cal mag drama but im using coco notes advanced nutrients a&b its ph perfect it says. regenaroot and some honeycomb.what should I do?? Thanks 😊
Leaves. Color · Yellow
6y ago
2
4
Solved
Hix57
Jaunissement, excès ou carence ?
My Amnesia is showing rapid yellowing of the leaves. I thought it had a nutrient excess because the tips were burning. I did a flush and put in a light feed to start over, but the problem got worse and the yellowing accelerated. Thanks in advance! 🌱
Week 10
Leaves. Color · Yellow
2y ago
3
5
Solved
Anonymous_2022
Magnesium deficiency?
Hi Growmies.. I seem to be getting alot of yellowing leafs and brown spots.. Am i right to say Magnesium deficiency? Calmag do the job? Thanks for your help 🌱
Leaves. Color · Yellow
4y ago
3
5
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
4y ago
2
4
Solved
6ix6ix6ix
Top new leaves yellowing and twisting.
My problem from the previous question is developing. The new leaves are yellowish and now they started twisting. PH is 5.8 in 6.0 out EC down from 2.0 to 1.75 the lower growth lack this problem, could be light burn? Was 20cm away (150w) Maybe its a deficiency i can’t understand
Week 5
Leaves. Twisted
Leaves. Color · Yellow
4y ago
5
7
Solved
Duggster
In the past few days im after noticing some discolouration on some of the leaves. They look to be turning a yellowish colour. Is this something I should be concerned about? And if so, what should I do about it?
Week 9
Leaves. Color · Yellow
6y ago
2
2
Solved
Gonach
Hojas Amarillentas - Lemon King - 4-5 Semana vegetación
My plants are turning yellow. I'm just days away from switching to the 12/12 cycle since I foliar-fed with Big One. If it's a nitrogen deficiency, how could I resolve the lack? Thank you very much for your valuable comments.
Leaves. Color · Yellow
5y ago
1
5
Solved
Mekster
Day 20 Flower. Leaves curling
Leaves curled over 12 hour light cycle. Ph 6.0. Ppm 950. I have been battling ph drop for a week. Lowered Ppm to 900 from 1100. Seems to have stabilized the ph and now the leaves are doing this. I’m looking to do the day 21 strip of most leaves tomorrow. Should I be concerned?
Leaves. Curl up
Leaves. Color · Yellow
3y ago
1
2
Solved
Dreamchvser
End of Flower, Yellow and crusty leaves ok ?
Hey last weeks of flower and I’m not sure if it’s fine how they are developing, as I started flushing this week they quickly started developing yellow crusty leaves. Should I keep flushing them as I will cut them in 1 or 2 weeks or should I try to balance out missing nutrients?
Leaves. Curl up
Leaves. Curl down
Leaves. Color · Yellow
2y ago
4
2
Solved
densesensi
Yellow leaves?
My bottom leaves are turning yellow - Is this heat/light burn? Or maybe a nitrogen deficiency?
Week 3
Leaves. Color · Yellow
6y ago
1
Solved
Elendil
Too much nutes?
Is this from too much nutes ?
Leaves. Curl up
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
4
3
Solved
Beccabud
General health
Advice please just on wether it's looking healthy. :) I've been too careful with watering and some leaves turned yellow. Feeding 1 litre every other day but maybe that's too little? Stopped with the Biobiz fish and switch to growbloom. Leaves at the top look droopy still?
Week 4
Leaves. Wilting
Leaves. Color · Yellow
Feeding. Schedule
4y ago
6
6
Solved
Ganjamanz
Adivice please
Can anyone please tell me what the bottom leaves are trying to tell me.
Leaves. Color · Yellow
4y ago
5
6
Solved
monkeybrains74
Yellow leaves, nutrient burn?
Have moved light further away. Did put some Tomorite in last week, so have just watered/flushed Looks like burning at the end of the leaves, along with many going yellow
Week 4
Leaves. Color · Yellow
4y ago
4
6
Solved
bud_rick
Nitrogen deficiency in clone transplanted 9 days ago?
I just grabbed a few clones last week and Immediately transplanted them into 2 gallon smart pots with ocean forest soil. I’m confused because it looks like the plant is nitrogen deficient which shouldn’t happen within a week of going into ocean forest soil correct? I also watered
Leaves. Curl down
Leaves. Color · Yellow
4y ago
1
1
Solved
KisukeUrahara
Nutrient lockout? [first grow]
My plant’s started showing signs of nutrient burn, so I have flushed them with just water, after 1 day they turned to worse condition than before. Is it nutrient lockout? Or just deficient? Appreciate every feedback!
Leaves. Color · Yellow
Leaves. Other
Feeding. Other
5y ago
8
11
Solved
pupa420lupa
Yellow marks on some old bottom leaves
Am I right this yellow problem with few old leaves is caused by lack of nutrients( N and Mg probably)?
Week 4
Leaves. Color · Yellow
3y ago
1
9