The Grow Awards 2025 🏆 
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
Yellow spots between veins
Scilefstarted grow question 2 years ago
In several weeks my plant has yellow spots between veins, but it starts from the top to the bottom of the plant: old leaves seems fine when the new ones are spotted.I thought it is Mg deficiency, fed my plant foliar with epsom salt, added CalMag to the feeding, but no luck. WTF?
likes
AsNoriuanswered grow question 2 years ago
Looks like light overfeed.
Don't forget not only deficiencies exist, toxicity and lockout can make same damage.
Epsom salt would sort any magnesium lack in 2-3 days.
Dont panic, just grow.
Watter more, love more, all will be good.
Have run off to prevent build up.
Robertsanswered grow question 2 years ago
This is s coco grow and your issue is a lack of proper irrigation. Deficiency signs and dark green leaves on very of nitrogen toxicity. Coco is Hydro in a potter. So it is to never get dry. 5.8 ph in 5.8 ph out in run off. Never let it sit in run off but always keep most. I had to review your diary to confirm this is what the issue is.
likes
Complain
Similar Grow Questions
Solved
NECROSANCT
what is this color?this discoloration on the leaves is a sign of N deficiency? so soon?Week 3
Leaves. Veins - yellow between
5 years ago
2
2
Solved
Chitown_grower
They are on the older leaves and they keep getting that faded yellowing starting from the tips. The pH of the run off is 6.43 and they havent been fed a round of nutrients in a week! I thought it was a cal/mag def but they haven't bounced back after a dose. Help please!5 years ago
2
1
Solved
BigBadLion
Two plants but one is small! Same tent, same nutrients and similar issues but different resultsOne of my plants is super small and I have no idea why. Initially I thought it was a magnesium deficiency but clearly it was not only that. The issues became apparent between weeks 4 and 6, right after the last transplant. Any idea what could've caused this?5 years ago
4
4
Solved
Akvinsky
Setup:
Soil+vermiculite (5:2)
Temperature in box is about 84F. Near the led 60w is about 90F
Ph in - 4.5-5.0. Out - 6.0-6.5
(because of vermiculite?).
Ppm in - 140 (only water last few days) . Out - 1500
On vegetative stage there was no problems with the same ph and ppm plevel.5 years ago
4
Solved
Deeroid
Help 1st time in here 1st time growFirst auto grow northern light 27 days from sprout just went off growing all good started showing signs ready for a feed after its first feed started with discoloration pics below have treat with foliar spray with cal mag thinking it is a magnesium deficiency thinking re pottinLeaves. Veins - yellow between
5 years ago
4
4
Solved
mailosa
Weird yellowing between the veins, which the plant had since germination. I don't know what to do about. I am trying feeding it nutes to see if that works.Week 2
Leaves. Veins - yellow between
6 years ago
1
1
Solved
Highclass
First pair of leaves losing their color and growing with the edges like curly. Problem???Week 1
Leaves. Veins - yellow between
6 years ago
3
9
Solved
420newbie
A few of the leaves started to get yellow spots along the veins. I was pretty sure it was nitrogen deficiency so I upped the nutes a little. Over the next day or so, 2-3 different leaves started to curl down at the tip. Is this too much nitrogen?Week 5
Leaves. Veins - yellow between
6 years ago
1
2
Solved
Jungian79
I’ve got a problem but not sure what it is. It appears to be yellowing in the leaves, maybe a magnesium lockout despite me adding magnesium and calcium. I had the same problem with my last grow but it’s much worse with this one. I’ve checked and calibrated my ph pen. Im blaming the soil which is Biobiz light mix. Please see photos for week 4 and tell me what you think. Thanks.Week 4
Leaves. Veins - yellow between
6 years ago
5
5
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
6 years ago
8
2
Solved
drop_some_weed
do you think everything looks ok? i can't see purple come out yet and two (same gen) have some discoloration on sugar leaves near to yellow, i've fluxed one of them two days but nothing change... approx two weeks of effective flowering stage it's normal or it's slow this growth?5 years ago
5
4
Solved
Biggie95
My OG's are starting to yellow much earlier than I am used to. Pictures are taken on day 35 and they're supposed to be around 8 weeks of flower. Could the yellowing be due to high pH in the medium or maybe disease or am I just being paranoid?Week 7
Leaves. Veins - yellow between
5 years ago
6
3
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
6 years ago
3
3
Solved
p4tm_CHEF
Pic week 7 (2/3/19).
Last couple of days started getting this discoloration on a few.
Had deficiencies in past but were usually spotty & random which ended up probably being calcium def...have added CalMag this go.
This is spaced specifically in between the veins. Please&TY.Week 7
Leaves. Veins - yellow between
6 years ago
2
1