# Yellow leafs problem

**URL:** <https://ilgmforum.com/t/yellow-leafs-problem/16757>\
**Category:** Grow Cycle\
**Created:** [December 16, 2017, 4:22am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757 "2017-12-16T04:22:23Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![kaliboss](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/kaliboss/32/83625_2.png) [@kaliboss](https://ilgmforum.com/u/kaliboss)\
**Post date:** [December 16, 2017, 4:22am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/1 "2017-12-16T04:22:23Z")

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Continuing the discussion from [Leaf diagnosis for new grower](http://ilgmforum.com/t/leaf-diagnosis-for-new-grower/16376):

First time grower. My plants are about 3 weeks old and they turning yellow on the edges. Please can anyone help me to diagnose the problem. I don’t know how to download the pictures yet, but any advice will be appreciated.

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**Author:** ![Hogmaster](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/hogmaster/32/619897_2.png) [@Hogmaster](https://ilgmforum.com/u/Hogmaster)\
**Post date:** [December 16, 2017, 4:24am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/2 "2017-12-16T04:24:37Z")

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When you go to reply there’s a button that says upload pick your picture wait for it to download 100 percent then reply a picture will help tremendously sounds like nutrient burn possibly

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**Author:** ![Covertgrower](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/covertgrower/32/423081_2.png) [@Covertgrower](https://ilgmforum.com/u/Covertgrower)\
**Post date:** [December 16, 2017, 4:25am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/3 "2017-12-16T04:25:24Z")

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@kaliboss it helps if you have a photo under natural lighting to help make a diagnosis of your plant. If you could fill out a help ticket so we understand your growing conditions? We want to help, but we can’t with out up to date information.

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**Author:** ![Hogmaster](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/hogmaster/32/619897_2.png) [@Hogmaster](https://ilgmforum.com/u/Hogmaster)\
**Post date:** [December 16, 2017, 4:26am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/4 "2017-12-16T04:26:14Z")

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Such as If it’s hydroponic if it’s medium what kind of medium (soil) & the lights you are using all that information will be very helpful

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**Author:** ![kaliboss](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/kaliboss/32/83625_2.png) [@kaliboss](https://ilgmforum.com/u/kaliboss)\
**Post date:** [December 16, 2017, 4:29am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/5 "2017-12-16T04:29:35Z")

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How do I fill out the help ticket?

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**Author:** ![Covertgrower](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/covertgrower/32/423081_2.png) [@Covertgrower](https://ilgmforum.com/u/Covertgrower)\
**Post date:** [December 16, 2017, 4:38am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/6 "2017-12-16T04:38:09Z")

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@kaliboss just fill out this information the best you can  
Strain; bag seed etc

Soil in pots or hydro

PH of runoff or solution in reservoir?

What is strength of nutrient mix?

Indoor/outdoor?

Light system, size?

Temps; Day,

Humidity;

Ventilation system;

AC, Humidifier, De-humidifier,

Co2;

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**Author:** ![kaliboss](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/kaliboss/32/83625_2.png) [@kaliboss](https://ilgmforum.com/u/kaliboss)\
**Post date:** [December 16, 2017, 4:59am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/7 "2017-12-16T04:59:02Z")

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White Widow Autoflower  
Soil in 5G pots  
PH- around 6. But I have to say I fixed the Ph level recently  
a few days ago. It was 7,6 before.  
NPK-16-4-8  
Indoor  
2x 45W led lights  
Temp- 75F  
Humidity: Don’t have the meter yet  
Vent System: Through the wall exhaust fan and I have a 1/12" pvc pipe into the room for co2.  
I still can’t figure it out to download the pictures

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**Author:** ![Covertgrower](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/covertgrower/32/423081_2.png) [@Covertgrower](https://ilgmforum.com/u/Covertgrower)\
**Post date:** [December 16, 2017, 5:15am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/8 "2017-12-16T05:15:09Z")

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Lower right of the response box it says upload. Then choose a picture. @kaliboss  
support ticket @Hogmaster

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**Author:** ![Covertgrower](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/covertgrower/32/423081_2.png) [@Covertgrower](https://ilgmforum.com/u/Covertgrower)\
**Post date:** [December 16, 2017, 5:22am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/9 "2017-12-16T05:22:09Z")

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@kaliboss I would say it’s nutrient burn with out a picture. Just water no nutrients for another week possibly two, and see how she turns out.

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**Author:** ![kaliboss](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/kaliboss/32/83625_2.png) [@kaliboss](https://ilgmforum.com/u/kaliboss)\
**Post date:** [December 16, 2017, 5:43am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/10 "2017-12-16T05:43:38Z")

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![11](https://global.discourse-cdn.com/growingmarijuana/original/3X/f/9/f9148f94a140a567412756cff846c81debc80264.jpg) ![47](https://global.discourse-cdn.com/growingmarijuana/original/3X/5/5/5507cc02567838ba3a298740d9619abd48b1195f.jpg) ![04](https://global.discourse-cdn.com/growingmarijuana/original/3X/6/a/6ad752ded678151002abdc8e63a7e0e70ee0377a.jpg)

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**Author:** ![kaliboss](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/kaliboss/32/83625_2.png) [@kaliboss](https://ilgmforum.com/u/kaliboss)\
**Post date:** [December 16, 2017, 5:48am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/11 "2017-12-16T05:48:45Z")

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![42](https://global.discourse-cdn.com/growingmarijuana/original/3X/9/0/9061eb1f3feb339d7f1bd1c55f0f22df5d5dd6f8.jpg)

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**Author:** ![kaliboss](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/kaliboss/32/83625_2.png) [@kaliboss](https://ilgmforum.com/u/kaliboss)\
**Post date:** [December 16, 2017, 5:55am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/12 "2017-12-16T05:55:01Z")

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Sorry it took me so long. I had to update my computer. But thank you for your advice.

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**Author:** ![HornHead](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/hornhead/32/267986_2.png) [@HornHead](https://ilgmforum.com/u/HornHead)\
**Post date:** [December 16, 2017, 5:59am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/13 "2017-12-16T05:59:20Z")

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Closer picture in natural light would really help

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**Author:** ![HornHead](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/hornhead/32/267986_2.png) [@HornHead](https://ilgmforum.com/u/HornHead)\
**Post date:** [December 16, 2017, 6:00am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/14 "2017-12-16T06:00:28Z")

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Sorry, @kaliboss read previous post

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**Author:** ![Covertgrower](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/covertgrower/32/423081_2.png) [@Covertgrower](https://ilgmforum.com/u/Covertgrower)\
**Post date:** [December 16, 2017, 8:40am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/15 "2017-12-16T08:40:23Z")

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@kaliboss natural lighting is best. But making an educated guess from the purple pictures, it’s nutrient burn. Just water for a week, and start again slowly, see how they respond.

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**Author:** ![bob31](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bob31/32/76512_2.png) [@bob31](https://ilgmforum.com/u/bob31)\
**Post date:** [December 17, 2017, 1:00am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/16 "2017-12-17T01:00:51Z")

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Welcome to the ILGM Forums @kaliboss

> [@kaliboss](#):
>
> Soil in 5G pots
> 
> PH- around 6. But I have to say I fixed the Ph level recently
> 
> a few days ago. It was 7,6 before.
> 
> NPK-16-4-8

What brand and type of soil?

Those 5 gallon buckets have got lots of holes in them for air and drainage?

How old are they and how long have they been in that growing medium?

how are you measuring / fixing your pH?

Was is NPK 16-4-8? Brand name and type. How often are you giving them and in what manner?

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**Author:** ![kaliboss](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/kaliboss/32/83625_2.png) [@kaliboss](https://ilgmforum.com/u/kaliboss)\
**Post date:** [December 17, 2017, 4:52am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/17 "2017-12-17T04:52:46Z")

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Hey Bob,  
Each bucket has a six 1/2" holes on the bottom.  
They are 3 weeks old and they’re like this I would say for more than a week.  
I have a digital Ph meter.  
I bought the fertilizer from Amazon  
N as a nitrogen 16%  
P as a Phosphate (P2O5) 4%  
K as a Potassium (K2O) 8%  
Here is my problem. The leafs started turning yellow before I gave them any nutrient. I’m using a moisture control potting mix from Miracle-gro and they’re saying it could feed up to six months. I started using a fertilizer NPK-16-4-8 after the yellow shows up, but that didn’t help eighter.  
Am doing a lot of research lately and guessing a heat stress?  
Here is why. My grow room is in the middle of the storage room and that room is not heated, so every time I open the grow room, the temperature drop at least 15 degrees, because it’s really cold outside these days.  
The other thing my thermometer was close to the floor and when I raised the meter a couple of feet, the temperature was suddenly over eighty degrees.  
Also, I didn’t have any fan inside. I add the fan only a few days ago.  
Do you think that cost could be from a heat stress?  
Any thoughts will be appreciated. Otherwise, I’m lost.  
Best,  
Roman

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<div class="post-metadata">

**Author:** ![dudemon](https://avatars.discourse-cdn.com/v4/letter/d/e68b1a/32.png) [@dudemon](https://ilgmforum.com/u/dudemon)\
**Post date:** [December 17, 2017, 5:18am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/18 "2017-12-17T05:18:18Z")

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PH (WAS) way out. Residual PH imbalance will take 2 weeks to clear up-as long as you don’t let go out of range again. But your pots are too big (too late now?); the bigger the pot the longer it takes to clear the PH imbalance. Go to emergency DI water and monitor PH before starting nutes (slowly) again. Your harvest will be postponed proportionately. Just don’t pull them out or give up and let them die, though. Work them back to health…

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**Author:** ![kaliboss](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/kaliboss/32/83625_2.png) [@kaliboss](https://ilgmforum.com/u/kaliboss)\
**Post date:** [December 17, 2017, 5:45am UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/19 "2017-12-17T05:45:23Z")

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I would never pull them out. I’m getting up in the midddle of night and trying to figure it out whats wrong with my babies :-). If its a ph level, I’ll keep an eye on it like a hawk from now on. Well its a first time indoor experience, so I know I’m making a lot of mistakes, but I belive I’ll get better. Thanks everybody to helping me out with my new hobby.

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**Author:** ![garrigan62](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/garrigan62/32/82896_2.png) [@garrigan62](https://ilgmforum.com/u/garrigan62)\
**Post date:** [December 17, 2017, 5:02pm UTC](https://ilgmforum.com/t/yellow-leafs-problem/16757/20 "2017-12-17T17:02:43Z")

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@kaliboss

1.) your Support TicketCopy/Paste: This “Support Ticket” Into Your Forum Post.  
Answer These Simple Questions The Best You Can.  
If You Do Not Know, Or Do Not Use Something; Just Say So = Na

Strain; Type, Bag Seed, Or Na

Soil In Pots, Hydroponic, Or Coco?

System Type?

Ph Of Runoff Or Solution In Reservoir?

What Is Strength Of Nutrient Mix? Ec, Or Tds

Indoor Or Outdoor

Light System, Size?

Temps; Day, Night

Humidity; Day, Night

Ventilation System; Yes, No, Size

Ac, Humidifier, De-humidifier,

Co2; Yes, No

Add Anything Else You Feel Would Help Us Give You A Most Informed Answer. Feel Free To Elaborate, But Short, To The

Questions And Facts Will Help Us Help You ￼

2.) YOUR PROBLEM IS - NUTRIENT BURN

Here is a pic of Nutrient Burn

 ![NUTRIENT BURN#7](https://global.discourse-cdn.com/growingmarijuana/original/3X/6/b/6b3407f48e975e1eeb1744a39b288ae5403e418a.jpg)

![NUTRIENT BURN

Nutrient Burn causes leaf tips to appear yellow or burnt. They can also be brown and twisted and crispy looking. Depending on the severity it can show many different symptoms and shows on lower part of the plant when its young, at older stages it can move anywhere on the plant.

To fix the problem when you have Nutrient burn, you want to flush out the plants with lots of water.

Soil

Soil should be flushed with lots of water, Use 3 gallons of water per one gallon of soil. Flush very thoroughly, after plant recovers usually after a week, you can resume using nutrients after a week or a week 1/2. When you flush your soil, you flush everything out, a lot of nutrients go with it, including the soil nutrients.

[Next page](https://ilgmforum.com/t/yellow-leafs-problem/16757.md?page=2)
