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Back to Grow Questions
Calcium Deficiency?
looney
started grow question 5y ago
Calcium Deficiency? It's not through out the plant and more on the fan leaves. TIA
Open
Leaves. Veins - yellow between
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Answer
BraveheartGenetics
answered grow question 5y ago
Could be an iron deficiency. Doesn't look like calcium deficiency.
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Complain
Similar Grow Questions
Solved
thebestine
Is this nute burn / deficiency? Or light burn? Or both?
What's going on with the intervenial chlorosis? Is it nute burn (zinc + manganese + iron potentially)? Is my proposed solution of only going with pH-balanced water a good mitigation strategy? Should I just not add super soil out of the gate?
Week 2
Leaves. Veins - yellow between
3y ago
1
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)
Week 6
Leaves. Veins - yellow between
Leaves. Color - Yellow
5y ago
4
2
Solved
einamio
Please help identify the cause, interveinal chlorosis since 2 weeks old, no necrosis so far. These two plants are 26 days old. Do they look stunned?
Is this magnesium def since it's going from the bottom? Is it possible the first signs started to show when they were just 2 weeks old? Or is this iron? Or is it smth else? Calmag given two days ago. Pistils show already. I water with ph6.2 but no runoff yet to know the soil ph.
Leaves. Veins - yellow between
Setup. Strain - Autoflowering
Feeding. Deficiences
7mo ago
8
4
Solved
SirTucksAlot
Hey guys got some discolouration on the leaves! Can’t tell what it is! Cheers
Week 5
Leaves. Veins - yellow between
Leaves. Color - Yellow
4y ago
3
3
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
5y ago
3
4
Solved
paulsgrows
From the start I’ve been watering with ph 6.5. I just discovered my runoff is 7.1 and I have what I believe to be a zinc deficiency. Similar issue on my previous grow. How can I fix my watering routine such that the ph stays more stable?
Week 5
Leaves. Veins - yellow between
6y ago
8
2
Solved
Hilkes_Herbs
I found one leaf that has some serious problems (Day 72 last picture - single leaf). We have to weeks to go and I do not panic. But I wanna know if this is a problem with anything or just their lifespan. Many leafes under the Kind LED feel very dry and burned but look different 😕
Week 11
Leaves. Veins - yellow between
7y ago
5
4
Solved
Dungeons_of_Dankness
Has anyone else heard of using epsom salt with gallon of water for magnesium and sulfur issues? I'm told you can water them or spray them during lights out. I've had some issues before with magnesium due to soil pH recommended by maker didn't follow it I later corrected it pH
Week 3
Leaves. Curl up
Leaves. Veins - yellow between
4y ago
8
7
Solved
maelxich
Mg deficiency?
2/3 of these girls are turning yellow between the veins. I’ve been doing a 1tbsp/gal Epsom sly foliage spray & added same to 1 gal when feeding today. Grown in compost/perlite with some soil mixed in. The Durban looks good but the Ghost and the GSC both seem Mg def right?
Week 3
Leaves. Veins - yellow between
4y ago
3
1
Solved
biologischNL
Likely potassium deficiency on one of my phenos? Can someone please confirm?
Looking at my plant pictures on 2nd of feb, #1 (plant on right) seems to have some sort of deficiency. Looks like potassium. For the record I dont use liquid nutes. Only dry organic amendments and I have not watered or top dressed in roughly 2 weeks. Thank you in advance!
Week 4
Leaves. Veins - yellow between
3y ago
1
2
Solved
GrowGermany
Magnesium Deficiency (last picture)? My nutes are ajusting the ph to 6.6 slightly lower than i woud like. Shoud i add Cal-Mag and/or ph+? BioBizz Nutes - BioBizz LightMix - 26 days old
Week 4
Leaves. Veins - yellow between
7y ago
4
4
Solved
PoleKat
Strange coloured fan leaves (3) on one of my 4 plants, maybe some sort of deficiency? Thanks people!
Hey there smart people! I have about 3 strange coloured fan leaves on one of my 4 plants and I’m not really sure what to make of it. To me it doesn’t look like any deficiencies that I came across per say. All other leaves look nice and healthy. Kinda randomly scattered. THX!
Week 8
Leaves. Veins - yellow between
Leaves. Color - Yellow
5y ago
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?
Week 4
Leaves. Veins - yellow between
Leaves. Color - Yellow
Leaves. Other
3y ago
4
Solved
Eagers
Magnesium deficiency?
Can anybody help with the yellowing between the leaves? Is this a magnesium deficiency? The leaves are still pointing upright but do have slight yellow/brown tips. Have recently transplanted into coco with an EC of 0.56. Ph was 5.8 and runoff was 5.7 when last fed. Any ideas?
Leaves. Veins - yellow between
5y ago
1
1
Solved
Willy_Balls
Light cloudy green areas between veins
Hi, Two of my plants (3rd week of veg) have these symptoms on the middle level fan leaves (the biggest ones). Young growth looks ok. Doesn't look like anything in symptoms photos, closest thing is magnesium deficiency. What do You think it could be?
Week 2
Leaves. Veins - yellow between
3y ago
18
8
Solved
SqwshKush
Yellowing leaves
Started to notice around 2nd week of flower. Worsening but only on a few of the old fan leaves which don’t get any direct light. Strain: Biscotti Mintz from Barney’s farm. Grown in soil, solution ph’d to 6-6.5 every time, organic grow. All additional details in diary.
Week 14
Leaves. Veins - yellow between
Feeding. Deficiences
2y ago
5
Solved
Pokes_smot420
Is she hungry for nutes or is this a deficiency (new grower)
Mid week 5ish, mature fan leaves and some newish smaller leaves yellowing starting from tip. Had nitrogen toxicity in its early life.. Ph at 6.5 watering about 8-10 oz every other day or 3. Just did a top dress on 12/29 only 1.5 tbsp of power bloom and .75ml fish shit.
Leaves. Veins - yellow between
Leaves. Color - Yellow
3y ago
6
Solved
privateerjosh
Leaves Showing yellow edges and banding
Is yellowing of leaves and dark leaves toxicity? no curling . moved the lights further away. I'm growing organic. The plants look stunted short dense. I've only got a cheap pH meter calibrated. 🤞 use RO water pH- citric acid. Overall they are short dense growth wise
Week 4
Leaves. Edges burnt
Leaves. Veins - yellow between
Plant. Too short
5y ago
2
2
Solved
treeofsong
hey guys, a few days ago i realized that some veins are yellowing, i think its because i didn't use florakleen when the plants started flowering, and all they have a Mg under, if someone has any suggestion i will appreciate
Week 6
Leaves. Veins - yellow between
7y ago
2
4
Solved
CrackinBeans
Leaf troubleshooting
Ive been mixing up a 6gal tank with jacks 321 full strength with 4 ml of calmag 3g of rechargeand 3.5ml of mammoth P, just started 5ml hydroguard, and 5gs of bloom from monstertek
[email protected]
ph runoff @8.2
Week 6
Leaves. Veins - yellow between
5y ago
1
1