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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
likes
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
dave1038
Yellowing, browning leaves
Here is my Northern Lights Auto which is on Day 75 from sprout These 2 photos are taken 3 days apart to show the progression of whatever is happening. 4ml Biobizz Grow 4ml of Biobizz Bloom 2ml of Calmag Per litre, use 2L of water every watering
Leaves. Color · Yellow
4y ago
1
1
Solved
Lasninasverdes
¿Qué creéis que le pasa ?
What do you think? Watering with biobizz 1.2 EC Humidity 40%. Temperature 24-28 degrees Celsius. pH 6.1
Leaves. Color · Yellow
Leaves. Other
Plant. Other
5y ago
3
2
Solved
WhackyTobaccy
Help validating what this is
My plant seems to have developed some kind of deficiency/excess. I researched and think that it's CalMag deficiency, added CalMag to my nutes (1ml/l). Just wanted to check in with the experts here to get a second opinion. The growth seems slow I'm afraid I may have stunted her 🤦
Week 2
Leaves. Color · Yellow
6y ago
1
2
Solved
ganjermaster
Could be this yellowing on newer leaves a light deficency problem?
I'm using a Mars Hydro TSW2000 distance 95cm to the mother plant, 140cm to seedlings and power 55%.. testing with phone app Light Meter I'm getting around 8000 lux in mother and 6500 lux in seedling.. I've raised it to 70% power and now getting around 11000/8000 lux mother/seed
Leaves. Color · Yellow
Setup. Lighting
5y ago
1
4
Solved
TomatoGrower00
Leaf Issues
Hey all, my almost 5 week old Moby dick auto flower is starting to show some issues in the first week of flower. She got a dose of Veggie nutes 5 days ago, and a little bit of Bloom yesterday trying to fix it. Temps have been high and humidity low, would that cause this?
Leaves. Color · Yellow
2y ago
1
Solved
Corwinism
What's Happening to my Glookies? Lower Growth Yellowing with Grey/Light Brown Spots.
Yellowing with grey/light brown spots occurring on the Glookies plants (starting from the tip of the leaf). I believe it may be due to the Fox Farm Ocean Forest soil mix but any advice or input on what is possibly happening is greatly appreciated. Fingers also fused together.
Week 2
Leaves. Color · Yellow
Leaves. Color · Black or grey
6y ago
3
1
Solved
TCH0808
Veg Nute Issues
Has anyone seen any diaries that catalog a successful sick veg -> healthy flower recovery? I'm curious to see how sick growth transitions to healthy growth over several weeks. Current issue: a) LED intensity, b), N excess, c) PK def, or d) cal/mag def(rust on leaves top and btm)?
Week 6
Leaves. Color · Yellow
4y ago
7
6
Solved
DrBuffy
Yellowing of top fan leaves
What is causing yellowing of the top fan leaves? Started to happen to a plant that I broke by accident during LST. However around the same time I upped to 2ml/l and moved the light a little closer. My ph has also been high (fine now). No idea which one could be the culprit
Week 5
Leaves. Color · Yellow
Setup. Strain · Autoflowering
Feeding. Deficiencies
6y ago
1
1
Solved
Royalgorillaxx
Yellowing on leaves
7 days old seedling. Trying to identify the problem. Please help me. Biobizz light mix on one and compo sampa soil on the other. I spray only with water just to keep thr soil a bit wet. Not an overwatering.
Leaves. Veins · Yellow between
Leaves. Color · Yellow
Setup. Seedling
6y ago
2
2
Solved
heythere12345
Yellow tips
What are those yellowish tips? Day 33 speed devil auto/ recently fed 1ml bio grow and 1ml biobloom in 500ml of water, i water every 3-4 days and nutes every second watering. Lights FL 250 W
Leaves. Color · Yellow
5y ago
2
2
Solved
OutForReal
Hello ! What so you think about my issue diagnosis ? What would be the best thing to do to treat her ? She was supposed to stretch one more week but she's flowering : what are your feelings about the incoming week ? Thank you for your input 😁✌️🏼
Week 7
Leaves. Color · Yellow
8y ago
1
3
Solved
oppilF
Spots/decolouration on leaves: 1 sideplant (that I grow next to my growlamp) is getting a few spots....
So, I have 3 plants: - 1 centerplant that gets most of the light & 2 sideplants (left and right) who also catch a lot of the light, but not as much as the centerplant: the sides arent getting direct light, more reflective light. ?? The left plant is showing a few defects. Anyone?
Week 6
Leaves. Color · Yellow
Leaves. Other
6y ago
2
3
Solved
Punpra04
Leafs get yellow
Leafs get yellow nd slow rate of growth
Leaves. Curl down
Leaves. Color · Yellow
7y ago
1
Solved
ElonMuskFanClub420
yellow/dark discolouring of leaves late into flower
Noticed this on about 5 leaves, some more affected than others. The plant is towards the end of the flowering, with about 3 weeks left, better to ignore it now or try to do something ? perhaps leaf Septoria, already increased air flow and decreased humidity
Leaves. Color · Yellow
6y ago
2
2
Solved
Philhsy
Yellowing leafs/overwatering/nute deff
Is this overwatering or nutrient deficciency, yellowing leafs botom and small spots on hogher leafs near flowers, very few yet but. I think its overwqtering with a lil nute deff also deoopy leafs
Leaves. Curl down
Leaves. Color · Yellow
1y ago
1
3
Solved
Ner0z
Help with hydroponics
Nutes are on week two. 74F rez. Adding 2ml/g h202. Did a rez clean/change and have 0 new root/plant growth for 8 days and have drooping and yellowing. 5.8ph. 1300gph air pump. 4.5in discs. 800gph recirculating pump. Brown on roots, no slime. Using flora plus (soy sauce colour)
Leaves. Color · Yellow
Leaves. Color · Mottling
Roots. Color · Brown
5y ago
4
5
Solved
maxwell
The worst thing I’ve ever seen
Today my friend send me some pictures and we don’t know what’s wrong, he bought some cuttings few days ago and now they are looking worse! Maybe you know what’s wrong?
Week 12
Leaves. Curl up
Leaves. Curl down
Leaves. Color · Yellow
6y ago
1
1
Solved
Bdawg
Yellow tips on the new growth
Does anyone know what is causing this. Growin in coco. Ph 6.2 Ppm 700 run off ppm 450 4 weeks into veg. Temps 25
… Show more
Leaves. Color · Yellow
6y ago
1
Solved
kitchenfarmer
Deficiency & delayed flower
Hi, so the little one from my previous question made it against all odds (the one in the 2nd row left):P Nearly all plants look a bit under the weather & 2 of them (Front left&the one in the back) have not started to flower yet while the others are at it since like a week or 2?
Leaves. Curl down
Leaves. Color · Yellow
2y ago
1
Solved
Grower422
Whats wrong with her
Watering every 3-4 day with around 1,75 Liter, Ph 6,3. Once a week feeding biobizz fertliza, about 1/3 of the recommend amount. It started 1 day ago, after watering and feeding.
Leaves. Tips · Burnt
Leaves. Color · Yellow
2y ago
1
1