Leafs curling down

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Drfeelgood420

Member

• Oct 16, 2017

• #1

I am starting week 4 of flower and the past could of days the leafs have been curling down.
I am growing in coco coir. I have stop with nutrients and did 2 flushes and gave it some Advanced nutrients Revive. not sure what is going on. please help

 

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Gary Goodson

Well-Known Member

• Oct 17, 2017

• #2

You did the right thing to flush because they are over fertilized. But you wont get an over night fix.

What ppm are you feeding?

 

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Drfeelgood420

Member

• Oct 17, 2017

• #3

Highest I went was 1010ppm.
After I noticed them curling down I went down to 600 ppm, still didn't go away so I did a flush and regular water feed, and I did a revive feed by advanced nutrients. My run off water is at 420 ppm 5.8ph
It's been over a week now

 

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Drfeelgood420

Member

• Oct 17, 2017

• #4

Also I see red veins in the fan leaves on some of them

 

Gary Goodson

Well-Known Member

• Oct 17, 2017

• #5

Most of the time the curl wont be corrected even after a flush. Keep watering them at 600-800 ppm. I would aslo cut any additives out and just use a base fertilizer.

I don't and won't use anything from AN so I can't help there. But I will say that "revive" is most likely a waste of time and money imho.

 

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Drfeelgood420

Member

• Oct 17, 2017

• #6

The question is how come they're not getting burned if they're over fertilized

 

Gary Goodson

Well-Known Member

• Oct 17, 2017

• #7

They are, the "cur"l is a sign of over fertilization. You caught it before they got too bad. So kudos to you.

The good news for you is they aren't to the brink of death. Just keep on feeding with base ferts and you should be good.

What fertilizer are you using?

 

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Drfeelgood420

Member

• Oct 17, 2017

• #8

Gary Goodson said:

They are, the "cur"l is a sign of over fertilization. You caught it before they got too bad. So kudos to you.

The good news for you is they aren't to the brink of death. Just keep on feeding with base ferts and you should be good.

What fertilizer are you using?

Click to expand...

Canna coco A+B week 1-4
I was going g to switch to heavy Bud A+B for week 4-8

 

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Drfeelgood420

Member

• Oct 17, 2017

• #9

I thought it might have been a nitrogen over load

 

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Drfeelgood420

Member

• Oct 17, 2017

• #10

And I've used mother of all bloom
0-50-30

 

Gary Goodson

Well-Known Member

• Oct 17, 2017

• #11

Drfeelgood420 said:

And I've used mother of all bloom
0-50-30

Click to expand...

Boom! thats the problem right there. Thats why I kept saying just use base ferts only. Don't worry about additives till you got your process down first.

Moab has way too much pk and is not needed. It creates lock out and burn(or curl/the start of over fertilization) when you use pk boosters too early. If you are gonna use it wait till week 6-7 and use 1/4 strength only.

 

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Drfeelgood420

Member

• Oct 17, 2017

• #12

Gary Goodson said:

Boom! thats the problem right there. Thats why I kept saying just use base ferts only. Don't worry about additives till you got your process down first.

Moab has way too much pk and is not needed. It creates lock out and burn(or curl/the start of over fertilization) when you use pk boosters too early. If you are gonna use it wait till week 6-7 and use 1/4 strength only.

Click to expand...

I thought I was nitrogen toxicity so I emitted the base nutrient and added only MOAB. I see the problem now. Thanks