Brown spots

Hey guys, hope you are all well!
I am day 69 from seed and everything has been going okay until now .
I have noticed on the fan leaves, they are going a little light green with tiny brown spots. I am watering 4.5l and feeding sensi A+b bloom at 2ml per litre and carboload & overdrive at 3ml each in total.
I have been feeding every other day when pots are light and coco is dry at the top, been doing it this way since around day 20.
Grosing in coco and perlite mix, ph is between 5.5 -5.8. Ppm seems to be around 900. Run off ph is 5.8 and ppm is 1.2k.
I always get a good 20-30% run off.

I am thinking of discontinuing the use of carboload and overdrive. Maybe this will solve it.

Oh yeah, she's a amnesia auto!

What do you knowledgeable stoners think?

i think its maybe a phosphorus def but i also think it could be too much phosphorus causing a lockout as i see soem curling down leaf tips i think?

weed-god-legend said:

i think its maybe a phosphorus def but i also think it could be too much phosphorus causing a lockout as i see soem curling down leaf tips i think?

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Yeah I was thinking something like this i attached the labels of the feed I give them. So 2ml per litre of sensi a and b (9ml of a and 9ml of b) and carboload and overdrive 3ml in total for 4.5 litres of water. Do you think it needs more or less carbo or overdrive?

The one with glucose is carboload

@go go kid any ideas pal?

It’s literally 2 leaves. They look fine

only thing I’d do personally is drop your feeds to 1.5ml of the a&b per litre, and up your ph to 6.0 and keep it there until you harvest.

bk78 said:

It’s literally 2 leaves. They look fine

only thing I’d do personally is drop your feeds to 1.5ml of the a&b per litre, and up your ph to 6.0 and keep it there until you harvest.

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Haha yeah its only a few leaves, just worried incase I do nothing and next week it spreads to a lot more!
Would you keep with carboload and overdrive aswell? Or drop these and reduce sensi?
Cheers!

bk78 said:

It’s literally 2 leaves. They look fine

only thing I’d do personally is drop your feeds to 1.5ml of the a&b per litre, and up your ph to 6.0 and keep it there until you harvest.

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Also, isn't ph 5.8 the highest for coco??

JordanZz said:

Haha yeah its only a few leaves, just worried incase I do nothing and next week it spreads to a lot more!
Would you keep with carboload and overdrive aswell? Or drop these and reduce sensi?
Cheers!

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I personally don’t add any extra shit besides a&b

JordanZz said:

Also, isn't ph 5.8 the highest for coco??

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I run 6.0-6.2 The entire life of a plant

bk78 said:

I personally don’t add any extra shit besides a&b

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Sweet, next feed is tomorrow. I will only add sensi a&b at 1.5ml per litre and see how it goes. Cheers for that fella

JordanZz said:

Sweet, next feed is tomorrow. I will only add sensi a&b at 1.5ml per litre and see how it goes. Cheers for that fella

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I ran the sensi line years ago at 1ml/L with great results.

bk78 said:

I ran the sensi line years ago at 1ml/L with great results.

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Good to know, thanks. I'll also go in at 6.0ph now on.
Last q I have another auto amnesia going which is roughly 20 days behind this one, shall I also discontinue the carboload and overdrive and reduce sensi??
Cheers

JordanZz said:

Good to know, thanks. I'll also go in at 6.0ph now on.
Last q I have another auto amnesia going which is roughly 20 days behind this one, shall I also discontinue the carboload and overdrive and reduce sensi??
Cheers

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I feed right up until I harvest. Your a&b is fine.

I just read you’re in coco, you should be feeding the plants daily with run off.

I’d add some Epson salt at 1 gram per gallon into your daily feeds too.

bk78 said:

I feed right up until I harvest. Your a&b is fine.

I just read you’re in coco, you should be feeding the plants daily with run off.

I’d add some Epson salt at 1 gram per gallon into your daily feeds too.

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I tried to feed daily with 20% runoff and it ended up with severe dropping leaves. I changed to every other day from day 20 and has absolutely no signs of over watering since then. Scared to go back to daily watering especially this far though!
Yeah coco hence why ph no higher than 5.8....

JordanZz said:

Good to know, thanks. I'll also go in at 6.0ph now on.
Last q I have another auto amnesia going which is roughly 20 days behind this one, shall I also discontinue the carboload and overdrive and reduce sensi??
Cheers

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no need to discontinue any of that but i would highly suggest/ reccomend checking out humboldt's secret golden tree nutrient. also there a and b but your a and b is fine also, the golden tree you can use to replace 9 of advanced addatives including the overdrive you speak of

weed-god-legend said:

no need to discontinue any of that but i would highly suggest/ reccomend checking out humboldt's secret golden tree nutrient. also there a and b but your a and b is fine also, the golden tree you can use to replace 9 of advanced addatives including the overdrive you speak of

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Sorry mate , I am being told different things by different people now not sure what to do!!!
Someone saying get rid of carboload and overdrive and reduce sensi from 2ml per litre to 1.5 per litre.
You're saying keep them but telling me info about other nutes... I will be experimenting going forward but I am having good experience with what I've got already.. just the issue now lol!

Just need to know how to fix the problem with leaf before it gets worse....

Can anyone please tell me what to do differently with what I am using... if I even need to?
Cheers all!!!!

JordanZz said:

Sorry mate , I am being told different things by different people now not sure what to do!!!
Someone saying get rid of carboload and overdrive and reduce sensi from 2ml per litre to 1.5 per litre.
You're saying keep them but telling me info about other nutes... I will be experimenting going forward but I am having good experience with what I've got already.. just the issue now lol!

Just need to know how to fix the problem with leaf before it gets worse....

Can anyone please tell me what to do differently with what I am using... if I even need to?
Cheers all!!!!

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for now lower ppm and feed cal mag if you have it, if not thew a and b will have some in. you can cut off the other stuff but the carbo 1 is just sugars so no need to stop that really. all preference on that one weather they do what you expect or not is up to you and your finances.. test golden tree in future for sure and it would not hurt to use it now even the golden tree that is.

JordanZz said:

Sorry mate , I am being told different things by different people now not sure what to do!!!
Someone saying get rid of carboload and overdrive and reduce sensi from 2ml per litre to 1.5 per litre.
You're saying keep them but telling me info about other nutes... I will be experimenting going forward but I am having good experience with what I've got already.. just the issue now lol!

Just need to know how to fix the problem with leaf before it gets worse....

Can anyone please tell me what to do differently with what I am using... if I even need to?
Cheers all!!!!

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Let’s listen to the dude who literally joined a hour ago

after all he is the weed god

good luck with your grow I’m out.

bk78 said:

Let’s listen to the dude who literally joined a hour ago

after all he is the weed god

good luck with your grow I’m out.

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yes i am and coco does prefer 5.5-5.8 ph range but anything betwean 5.5-6.5 will work 0.0

weed-god-legend said:

yes i am and coco does prefer 5.5-5.8 ph range but anything betwean 5.5-6.5 will work 0.0

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Any pics of your flower room by any chance so we can see gods work?