Help - First grow - 3 week old plants rather unhealthy

[Lordazathoth]

Hello everyone
This is my first grow, I hope you can help as this is driving me mad. I can see some yellowing, the veins are still dark. It only started with the older leaves but can now see it on the new growth.

I do not know if I should flush...


What Strain is it? OG Kush auto Flower - Hybrid
Is it Indica, Sativa or Hybrid? What percentages? OG Kush x Haze 2.0 Auto / Sativa/Indica/Ruderalis
How Many Plants? 4
Is it in Vegetative or Flowering Stage? Veg
If in Vegetative Stage... How Long? 23 days

Indoor or Outdoor? Indoor
Soil or Hydro? Coco and clay balls 60/40

Size (Wattage) of Light? How Many? 1 LED 600w
Is it Air Cooled? fan
Temperature of Room/Cabinet? 27/28 celcius
RH of Room/Cabinet? 50-60
PH of Medium or Reservoir? 6.0

How Often are you Watering? Once a day
Type and Strength of Fertilizers used? Canna A and B and seaweed extract
EC Hanna Eutech Truncheon CF
2.0 1000 ppm 1280 ppm 1400 ppm 20

Size or Square Footage of Room? 1m2 (100x100)

the ph of the run off water is at 6 and the ec is non existent, so now I don't know I thought it was either a ph issue or a deficiency...

Thanks

 

[fuglyman]

If we could some pics in regular light please.

 

[Lordazathoth]

If we could some pics in regular light please.

yes of course, will be a minute

 

[Lordazathoth]

Hello

here are some pictures with natural light they are in 20 litre pots.

 

[fuglyman]

From the problem solver it looks like a Potassium deficiency. I am not familiar with you grow medium so I could be wrong. Over watering in soil can lead to these symptoms.

 

[Lordazathoth]

Potassium ok thanks would canna a and b not be enough?

 

[Lordazathoth]

Hello
Can anyone else give their opinion please, I don't want to lose them.

 

[luckiestman13]

Hello
Can anyone else give their opinion please, I don't want to lose them.

Why did you wait so long to ask for help? Do you know the strength or ph of your water?


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[Lordazathoth]

Hi,
god knows why I didn't.
the ph of my feed is around 6. So is run off water last time I checked

 

[MrLoveGrow]

Yeah maybe stop watering to much, let them dry out good....shouldn't need any nutes for a couple more weeks. If anything give them some magnisium sulfate "epsom salts" and pluck dieing leaves as new growth forms.

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[Lordazathoth]

Yeah maybe stop watering to much, let them dry out good....shouldn't need any nutes for a couple more weeks. If anything give them some magnisium sulfate "epsom salts" and pluck dieing leaves as new growth forms.

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thanks for that, I think the reason was in front of me. my EC was at 2.0... way too high for veg...
I watered it down to 1.4. Let's see what happens

 

[luckiestman13]

Always error on the light side for nutes. Looks like you found the culprit.


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[Lordazathoth]

As these are autoflowering I hope I will still get a descent crop...

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[Lordazathoth]

I have a question. How many times should I flush them?

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