The Grow Awards 2026 🏆 
Can anyone give me some advice what should the run...
UK420hydrogrowstarted grow question 7y ago
Can anyone give me some advice what should the run off be ph and ec for week 9 of flower growing in coco coir need help plants severely sick
likes
Watersanswered grow question 7y ago
Your Ph should be between 5.5 and 6.5 and runoff should not exceed what you put in by more than 200ppm. If the leaves are yellowing it sounds like nitrogen is lacking due to the increasing swelling of the flowers.
Similar Grow Questions
Solved
BrianMcGee
Yellowing of lower leaves and crispyCheese auto soil airpot 9L (barneys) 18/6, 14inch light distance (100% power). RT 21/28C, RH 40/60%. Been feeding when top inch is dry which is 500ml every 2/3 days. Using canna every thing at 1/4 doses and 6.1ph. Have added bloom with 5% nitrogen, thought it may be deficient.Leaves. Color - Yellow
2y ago
2
7
Solved
Ph0en1x
Prevent getting worse leaves colourHello everyone,
The plant is on day 4 of flowering, and the symptoms (light/yellow tips) are getting lighter and spreading.
This is the nutrient solution I watered with:
------
Terra Bloom: 5 ml/L
CalMag Pro: 2.0 ml/L
Power Roots: 1 ml/L
Sugar Royal: 1 ml/L
Pure Zym: 1 ml/LLeaves. Curl down
Leaves. Color - Yellow
2mo ago
1
3
Solved
JTrim
Help calcium deficiencyI think I have a bad case of calcium deficiency? This started shortly after switched to 12/12. I added 1/4 tsp to a liter of water 2 days ago. I’m not seeing improvement. Am I right ? Will the leaves turn back green (how long)? Is it something else? Will it die?Leaves. Color - Yellow
5y ago
3
1
Solved
MrFink
Fading? Time to start flushing?There’s a few plants starting to show some yellowing in the bigger fan leaves, I haven’t started flushing yet and am wondering if now is the time to start? I’m almost at the end of week 6 of flower, strains unknown. Also pretty sure that’s light stress/burn so I moved her away.Leaves. Color - Yellow
5y ago
1
1
Solved
dillande3
Leaves Dropping off and Yellow, Day 28 Bloom. both plants same symptomHello, Gelat.OG and PGK both has some Yellow/Brown Laves under the canopy, Leaves dropping as well, every day I can see this, day 28 Flowering. I have no Idea what is this about, Also not over watering, this is Organic living soil water only method, Pls let me know guys Thanks3y ago
5
5
Solved
AmsterdamBase
Yellowing leaves, need guidance! :)I'm having some issues with yellowing leaves at some bud sites and lower leaves. Would be glad if someone could point me in a direction as what to do to help my plants out :) it should be visible in my last picture
They got their first feed 2 days ago and were watered
Thanks!5y ago
1
4
Solved
Kagesan
Yellow leaf tipsHello,
I think I have a slight over-fertilisation.
Could someone have a look at this. And could someone explain to me in this context whether and how bad it is that the water does not flow through when watering. I have never had water under the pot.Week 2
Leaves. Color - Yellow
2y ago
11
1
Solved
PepInMyStep
My plant is looking yellow. HELP!!!! thanksmy plant is yellow, I am now on day 14 or 15 of the growth and I am giving it 0.6mS of advanced nutrients grow and occasionally some K2O. Does anyone know why this might be happening or if I should even be worried? Thanks :) (more detail in my diary)Week 1
Leaves. Color - Yellow
4y ago
4
3
Solved
Casualguy
Little discolorationIm seeing some discoloration on one single fan leaf I just did a 6 week flush before I start my flowering nutrientsWeek 4
Leaves. Color - Yellow
4y ago
2
5
Solved
Betagemini
Hi Guys I need some advice pleas to stop yellowing all the leafs on the plant. I started feeding her with 40ml of Biocanna Flores per 10l of water 3-4times per week and 2 weeks later a I added 100g of guano. Do you thing it is Potassium (K) defeciency? or it is toomuchPhosphorus?Week 23
Leaves. Color - Yellow
6y ago
6
3
Solved
chris_23
The plants get yellow leavesGuten Abend ich bin hier neu, und habe folgende Frage; meine 4 Francos Lemon Cheeses werden immer hellgrüner? Sie stehen in einem 50x100cm Zelt und werden von einem Zeus XT 308 in der Farbe 3500K Cri 90 beleuchtet. Die Erde habe ich aus ca. einem Drittel gebrauchter Erde und 2 Drittel Plagron All Mix gemischt, und je 2 BioTabs/Topf gegeben. Stehen tun sie in 11l Pflanzensäcken. Seit einer Woche wird eine extrem hell und später werden die Blattränder braun, aber jetzt werden alle heller und sehen nicht mehr gesund aus. Laut meinen Recherchen schauen sie unterdüngt aus, aber ich bin mir absolut nicht sicher. Vorgestern war Gießtag und ich habe folgendes dem abgestandenen Leitungswasser beigemengt. 3ml/l CalMag von Biobizz 5 ml/l Melasse und 5ml/l Bio Tabs Orgatrex sowie 2ml/l Terra Grow von Plagron. Vor ca. 10 Tagen habe ich zum ersten mal gedüngt und habe ca. 5ml/l Bio Tabs Orgatrex und ein wenig Melasse gegeben und vor 6 Tagen habe ich geflimmt. Die Pflanzen sind etwas über 5 Wochen alt. Ich bin auf Eure Tipps gespannt und sag schon mal danke.Leaves. Color - Yellow
3y ago
3
3
Solved
Togoutouseg
Feuilles jaune et marron!Bonjour, j'aurai voulu savoir si vous saviez ce qui arrive à me plantes. Une d'entre elle se décolore, elle perds son vert qui jaunis. Et l'autre à beaucoup de mal à pousser, et ses pointes deviennent marron. Les feuilles se lève aussi.
Merci beaucoup pour votre réponse.Leaves. Color - Yellow
Leaves. Color - Pale
Leaves. Color - Dark-brown
3y ago
1
3
Solved
FishOil
Yellowing LeavesI'm concerned my plant may be prematurely yellowing. I've added Cal-Mag to see if that would help with the yellowing of leaves, but the issue persists. Yellow leaves are moving progressively higher up the plant, but my other strain is not presenting same problem. (See Post)Week 18
Leaves. Color - Yellow
4y ago
4
4