Need help with unknown issue

S

Stevenh

Member
Hi all, just joined and its my first grow. I've got 8 autos in 5th week of flower which are showing issues on their leaves which I can't figure out. They are canoeing down with some having yellow tips others have brown and yellow spots. 8 tried to upload photos but keeps saying can't open file chooser.

Vitals are..
Coco coir.
20 on 4 off light.
Flora micro 1ml/ltr.
Flora grow .5ml/ltr.
Big bud 2ml/ltr.
Silicon 1ml/ltr.
B52 1ml/ltr.
Bud candy 2ml/lte.
Temp 29 degree c/85 f.
Humidity 50%.

Any help would be greatly appreciated.
Thanks
 
Nutty sKunK

Nutty sKunK

Well-Known Member
I use the wee image above this text box to drop photos in. Try that.

How often are u watering? Coco shouldn’t be left to dry in between waterings.

Also that’s a lot of food for this stage in growth. All you need at this time is grow, micro and silicon. Noticed there’s no calmag in your feeding regime too?

Best thing is to flush medium and give them a balanced feed of micro, grow and calmag. Rest of the stuff can sit on the shelves
 
S

Stevenh

Member
Nutty sKunK said:
I use the wee image above this text box to drop photos in. Try that.

How often are u watering? Coco shouldn’t be left to dry in between waterings.

Also that’s a lot of food for this stage in growth. All you need at this time is grow, micro and silicon. Noticed there’s no calmag in your feeding regime too?

Best thing is to flush medium and give them a balanced feed of micro, grow and calmag. Rest of the stuff can sit on the shelves
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Hi, I use cana calmag at 0.5ml/ltr. Cut it down from 1ml/ltr few days ago. I water twice per day 20% runoff at least.
 
Nutty sKunK

Nutty sKunK

Well-Known Member
It’s only affecting the top growth. Your lights are probably too close. What distance/wattage is it?

Can clearly see the highest points are yellow where as the shaded parts are nice and green.

Some plants are more light sensitive than others
 
Nutty sKunK

Nutty sKunK

Well-Known Member
That’s a lot of light and pretty close to the tops! Most likely light stress - if u can raise them a few inches that would be ideal.

Some plants are more tolerant than others when it comes to light intensity. It’s not peak sun in nature for 20 hrs is it?
 
S

Stevenh

Member
Nutty sKunK said:
That’s a lot of light and pretty close to the tops! Most likely light stress - if u can raise them a few inches that would be ideal.

Some plants are more tolerant than others when it comes to light intensity. It’s not peak sun in nature for 20 hrs is it?
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I suppose, never thought of it like that. Just did what other ppl said to do. Monkey leading another monkey. Cheers
 
Nutty sKunK

Nutty sKunK

Well-Known Member
Stevenh said:
I suppose, never thought of it like that. Just did what other ppl said to do. Monkey leading another monkey. Cheers
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Since everyone’s setup/environment is unique it simply takes time and a willingness to learn and you’ll get better in time
 
Mullumbimby

Mullumbimby

Well-Known Member
If that's your first grow, I'd say you're doing pretty good. I don't grow autos now but, when I did, I found they needed way less than the 'recomended amount' of food. Less food often makes for an easier grow as you are not sailing quite so close to the wind. Your plants look quite heavily fed.
Learning to do less is hard.
Good luck.
 
S

Stevenh

Member
Mullumbimby said:
If that's your first grow, I'd say you're doing pretty good. I don't grow autos now but, when I did, I found they needed way less than the 'recomended amount' of food. Less food often makes for an easier grow as you are not sailing quite so close to the wind. Your plants look quite heavily fed.
Learning to do less is hard.
Good luck.
Click to expand...
Mullumbimby said:
If that's your first grow, I'd say you're doing pretty good. I don't grow autos now but, when I did, I found they needed way less than the 'recomended amount' of food. Less food often makes for an easier grow as you are not sailing quite so close to the wind. Your plants look quite heavily fed.
Learning to do less is hard.
Good luck.
Click to expand...
Yeah I didn't know they'd get so big, wish I had done less but lesson learned for next time. I was grow diaries about the strain seeing what ppl fed them so basically that's where I got all the nutes from. I've cut I down on a few things especially calmag because of the nitrogen. I've learned alot more knowledge for my second grow when it happens but I'll do things differently. Thanks mate.
 
S

Stevenh

Member
polishpollack said:
looks like some over fert with dark green leaves and tip death too. temp too warm.
[/QUOT
I had my temps a
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polishpollack said:
looks like some over fert with dark green leaves and tip death too. temp too warm.
[/QUOTE
Spot on mate, gave them too much nitrogen from calmag and other stuff n guy on thc farmer told me 75f too cold needed to be above 85f. Doing what he said has made them foxtail like crazy. He didn't mention id need co2 at that temp.
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