The Grow Awards 2026 🏆 
What kind of deficiency could this be? Thx in adv...
Fusionanswered grow question 6y ago
Calcium. Not enough. pH is probably low that can't uptake enough. Can raise your pH or add cal to your next feeding
Similar Grow Questions
Solved
Leafy420
Was it to much?My plant looked okayish then i transplanted and topped the same day and this happend
( i think I was feeding too much calmag )
Changed the res now running at a ppm of 750 ph 5.8ish RO water on autopots
( oh and my cat ate the tips from 3 leafs X( ...)
Last pic is todayLeaves. Edges burnt
Leaves. Veins - yellow between
2y ago
3
3
Solved
kaiabel
Hi growmies, FD 41 can you check the progress?Can you check my flower day 41. I think they getting better just the NYCD still looking a bit strange on the leaves. Keeping the feed up and wait till they show better color.
NYCD third pic
Maybe you guys see something im missing.
Thanks and have a great day. Peace3y ago
3
3
Solved
EXZELENS
Help with symptomsWhat kind of problem is this?Week 7
Leaves. Veins - yellow between
5y ago
1
1
Solved
Denzul
Zombie 6 as shown above in day 20 has a weird light green color forming out the middle. Is this an issue or simply the genetics (Mixed bag so unidentified auto)?Week 2
Leaves. Veins - yellow between
7y ago
3
3
Solved
HEDONBOY
YELLOW LINES ON FIRST SET OF TRUE LEAVESHello fellow growmies. I am feeling very anxious about this particular seedling which has weird yellow lines and wrinkling leaves since 3-4 days, from well before i put myco and they're growing also but not this issue doesn't seem to fade away please help URGENT!!Week 1
Leaves. Veins - yellow between
3y ago
5
3
Solved
myrceneCB1
Interveinal chlorosis on older and new leaves. Magnesium deficiency?I've been maintaining my nutrient mix pH at 6.2-6.3 as recommended by Biobizz. However Ive been noticing magnesium deficiency like symptoms on the older and newer leaves. Should I increase my pH to 6.5-6.7 or is this something else entirely?Week 7
Leaves. Veins - yellow between
4y ago
5
3
Solved
greenhousegrowgirl
Yellow mottled leafShould I be worried about the yellow vein like apprearance and mottled discolouration?! 😰Week 2
Leaves. Veins - yellow between
4y ago
4
3
Solved
Hellishjam
Magnesium Deficiency?!?!Hey there GD, so i'm thinking i have a MG issue right now, i did apply some fertilizer rock dust in order to try and correct it. it has started at the bottom of the plant of the bigger fan leaves then has moved up the plant is now show on the tops of them...Week 18
Leaves. Veins - yellow between
6y ago
3
5
Solved
Franzl
Whats wrong with her ? Clawing and yellow spotsIm a first Grower. Here some info:
Location: Indoor, 60x60x180
Light: Mars Hydro 1000
Soil: BioBizz Light
fertilizer: BioGrow GreenHouse
pH: ~7,3
Temperatur: 23°C
3x Fast Eddy CBD
One of them girl got problems
Im afraid that she will die. what can i do? Every day it get worse.Leaves. Curl down
Leaves. Veins - yellow between
Leaves. Color - Yellow
4y ago
5
Solved
CoastGrower
Top Leaves are becoming yellow from the inside out.Hi, anybody know what the problem is with this plant? The top leaves are becoming yellow/white from the inside out. Also the leaves have a different shape.
The plant is in open soil and I give her water and sometimes some veg nutrients. Thanks in advance. (Last picture)6y ago
4
2
Solved
elevensixty6
Still to early to tell? Noticed yesterday and have slightly worsened today. Not sure the issue but potentially magnesium? Getting close to top dress also.Only on 1 of 3 plants so far. On older growth after getting dose of Recharge the other day. Maybe an N problem as I also use 484? Or mag? Using CalMag every other watering in RO at 150ppm as the soil has some cal and mag. Also getting close to top dress time maybe something else?3y ago
4
Solved
Northern_Ent
Deficiency?What is causing this deficiency? UsingProMix HP, top dressed with worm castings, and foliar spray with Epsom salts. I think it is Fe/Mn/Zn deficiency that looks like magnesium deficiency, and it seems to happen to all the plants at about this age. Mega Crop and kelp to fix?Week 4
Leaves. Veins - yellow between
4y ago
6
5
Solved
Eagers
Help diagnosing deficiencyCan someone help diagnose this? Is this a Nitrogen deficiency or a Potassium deficiency, Ph runoff is fine 6.4 and EC runoff is 1.8. Lower leaves have been yellowing and dropping so last feed I upped grow to 1.5ml/l from 1.0ml growth has been good. Dont want issues now tho ThanksLeaves. Veins - yellow between
Leaves. Color - Yellow
5y ago
1
1
Solved
Qutro
Top leavesHi Growmies,
Two weeks ago i noticed that there are some yellow stripes appeared on the top leaves. The PH fluctuates in DWC can this cause some micro nutrient deficiency but I don’t really know.
Do you have any ideas what could be?
ThanksWeek 5
Leaves. Veins - yellow between
2y ago
15
7
Solved
GronkLeague
First grow yellowing seedlings :( nute problem?I seem to be following all the instructions on grow temperature range, light distance, and watering schedule(only watering hen the medium is drying); I've hardly used any nutes until day 22 as advised and I personally think this has caused me some issues although I may be wrong.Leaves. Veins - yellow between
Leaves. Color - Yellow
Leaves. Color - Pale
6y ago
3
4
Solved
Dbkoop
Mg deficiencies? RDWCI have a Lemon auto RDWC and Blue dream auto in ffof mix. Both are showing some deficiencies or something no. Both have dark green veins and have like a gradient effect where it gets lime green to yellow inside outwards and a few burnt tips. Any advice?Leaves. Tips - Burnt
Leaves. Veins - yellow between
Leaves. Color - Yellow
4y ago
3