The Grow Awards 2026 🏆

Back to Grow Questions

Why brown spots

Its3AMstarted grow question 5y ago

Why is it growing brown spots Could it be nutrient lockout from the PPM being over 2000?

Its3AM

Its3AM

Open

Leaves. Color - Dark-brown

likes

Answer

GMSgrowsanswered grow question 5y ago

Yes. Your normal ppm level for coco is 800 in full veg. Same for mid flower. Cheers

1 like

Complain

Similar Grow Questions

Solved

Brown spots, PH in run-off is in the high end (6.5~)I see some brown spots on my leaves. I thought it was Calcium Deficiency caused by too low PH so I gave them PH 6.5~ with 30% run-off, and run-off shows at least the same PH so I think it is not too low PH, could it be caused by something else? Maybe too high PH or light-stress?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

3y ago

11

7

Solved

Imali razloga za brigu radi ovih flekica ? I nekako na ova dva sastrane lista koda su vrhovi potamnili?

Leaves. Edges burnt

Leaves. Color - Dark-brown

3y ago

1

4

Solved

Brown spot Color has changed of the brown spot

Leaves. Color - Dark-brown

Plant. Stem - Red or purple

6y ago

2

Solved

Bottom Leaves only looking worse for wear Hi, does anyone know what's causing some of my very lowest leaves to become like this? They are still attached to the plant but fall off really easily and look like they've had the life sucked out of them. The rest of the plant looks relatively fine.

Leaves. Dropping off

Leaves. Color - Dark-brown

Other. General questions

6y ago

9

7

Solved

Hey guys see week 13 day 90 last picture is it Mag toxicity or deficiency? I been watering with molasses 4ml every second watering

Leaves. Color - Dark-brown

6y ago

1

2

Solved

I’ve been using Biobizz AllMix and I fed her Advanced Nutrients Sensi Grow. Even tough flushed her twice, it has not stopped yet. Burned leaves symptom continues. Seems like it’s going worse.

Leaves. Tips - Burnt

Leaves. Color - Dark-brown

Plant. Stem - Red or purple

5y ago

4

10

Solved

Brown spots on the leaves I have some brown spots on the leaves, the pH, ppm are as recommended, what could cause this?

Leaves. Color - Dark-brown

4y ago

3

3

Solved

Brown spots and yellowing What do you think this is? Nutrients deficiency or maybe soil ph. Happened overnight and the plants are a little dry but I just gave them water and nutrients. My ph tester has been broken so I’ve sorta been winging it with some ph strips.

Leaves. Color - Yellow

Leaves. Color - Dark-brown

6mo ago

2

4

Solved

Hilfe was ist los ....

Leaves. Curl down

Leaves. Color - Dark-brown

Leaves. Color - Mottling

5y ago

2

2

Solved

NoFaceNoName461

Leaves problem at end stage Hi Guys, Once agiam I need your help, I’m at almost the end of the stage of Green gelato auto, And suddenly the top leaves started first to get kind of Bronze colour and now it’s even getting worst, What’s should I do and what might be the problem?

Leaves. Color - Dark-brown

4y ago

3

3

Solved

VPD related leaf issue? Brown spots, don't think its Cal related. Pls, any help would be appreicated.Brown spots on leaves, I thought it was Cal related, and tried different doses, with no success. Could it be VPD related? It can and does get very hot and very humid in the 1.5ftx2.5ft closet. Even when running no humidifier (Live in AZ). I've been struggling with this for months

Leaves. Tips - Burnt

Leaves. Color - Dark-brown

Leaves. Other

3y ago

4

Solved

This is my first grow any help would be appreciate.

Leaves. Color - Dark-brown

6y ago

2

Solved

Brown Marks, Drooping leaves and pH falling down https://growdiaries.com/diaries/125449-grow-journal-by-willertex Please mates help me: what is herproblem ? Her pH continue falling down since 3 res, I tried all levels of EC, but she never stabilized. 3 weeks of bloom. Roots looks ok.

Leaves. Dropping off

Leaves. Color - Dark-brown

Feeding. Chemical composition

4y ago

1

2

Solved

Pls help Is IT magnesium deficiency again?

Leaves. Edges burnt

Leaves. Color - Dark-brown

3y ago

1

1

Solved

I’m seeing brown on the lower leaves. They also appear particularly shiny like a magnolia leaf. Is this too much iron or magnesium?

Leaves. Color - Dark-brown

6y ago

3

3

Solved

pH DWC grow. 1. pH dropping 6 to 5.3 in a day, changed new nutes still happening 700ppm/ec 1.4 staying same no change. 2. Roots doesn't stink or smell, my roots has always look like that using biodiesel and seaweed 3. Distinct brown spot on leaves Please advise.

Leaves. Color - Dark-brown

Roots. Color - Brown

Feeding. Other

5y ago

5

3

Solved

Help Got two ladies having some problems, all get the same food but only this two have show some problem. Fedding with Advanced Nutrients pH perfect PH 6.3-6.5 eC ~800

Leaves. Color - Dark-brown

1y ago

1

1

Solved

cal and mag canna coco Leafs I think its cal and mag but unsure. If it was how do I correct it. Do I say flush with 10 20 liters and then give it 1 mill cal and mag per litrr all canna nutes I use

Leaves. Color - Dark-brown

6y ago

1

Solved

Brown parts on more and more leafes I see more and more brown parts on the leafs of Sour Diesel (only) any idea what the issue might be? For reference see also my pictures of SD. First idea: Added 1 liter banana extract(to get Potassium) added 2 liter water and 2,5 ml CalMag.

Leaves. Curl up

Leaves. Color - Dark-brown

1y ago

6

2

Solved

Deficiency? Help me...Hey guys im having a problem with my gorilla cookies auto.it's 8 weeks from seed, growing in plagron pebbles, drip system, EC now 1.8, PH 6-6.5. light viparspectra xs1500 pro, height approx 30 cm. Nutrients - advanced nutrients

Leaves. Color - Dark-purple

Leaves. Color - Dark-brown

2y ago

1

2