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Need help with my 1st grow - White Widow auto in DWC week 7  

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Leo
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Posted by: @templegrower

And I'm just barely ahead of you then with my current run of autos

aahh sweet man, you got any pics of them somewhere around?

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TempleGrower
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@leo41

Nope, I've kept these ones a secret... ? heh heh heh. I'll get some up a bit later on though, if you wanna have a gander.

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@templegrower

Oh yeah man, a pleasure to see you pics, your diaries are dope

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Leo
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Hey @Macky, here's a quick update today:

IMG 0070
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IMG 0068

She's been growing alright this past week, but what's up with these yellow spots that continue to show even on new leaves?

PH fluctuation is under control - except when I change the res keeping the same EC, then there is some fluctuation in the next couple days, but I always adjust it every 12h. Can calcium deficiency still be the reason?

Also, should I trim some of the more damaged leaves or do I just leave them be?

Thanks buddy

PS: is the chat under maintenance or something? I can't see the "icon" since yesterday

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Macky
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Posted by: @leo41

is the chat under maintenance or something? I can't see the "icon" since yesterday

No mate, it should be there, Its there for me? What device are you on?

And yer man if the EC and PH are remaining stable but youre getting them marks, it is probably calcium def. You got some cal mag to add to the res? it wont need much no more than 0.5ml per litre. 

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Yes, its being look at to fix the sound 😉 Hope fully

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Leo
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Posted by: @macky

Yes, its being look at to fix the sound

oh that explains

Posted by: @macky

it wont need much no more than 0.5ml per litre

I've been adding about 0.25ml/l, I'll up the dosage... thanks man, see you later

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Leo
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Here's how she's looking now:

IMG 0075
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Still some brown spots showing up in new growth.... Probably I should up the calmag, but the EC is stable at 0.75 and rarely drops. Can I risk increasing it?

 

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yer man bump it up a couple of points, try for 0.9, see how she goes with that. Looking good though!

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Leo
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Thanks, Macky!

Posted by: @macky

Looking good though!

?

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Leo
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Alright so she seemed to be doing fine during the stretch, all new leaves were healthy. But a few days ago I saw this (new leaves close to the top):

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I noticed it has been spreading to other healthy leaves too, mostly on the top. I thought it could still be mag def or even potassium def? I'm using 10ml of Calimagic, this brings the EC from 0.14 to 0.7, then I add the other nutrients (bloom now) till EC 0.9 and PH it.

Anyways, I tried to bump the EC from 0.9 to 1.1 to see how she would react but every 12h it would go to 1.4 and the PH would drop and this went on for 2 days so I backed off and went back to 0.9. I also noticed that the top of the plant was yellowing a bit comparing to the middle section (brought the LEDs intensity down cause I thought it could be light burn too). This are pics taken earlier today:

IMG 0087
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I did not trimming except for very sick leaves. The growth had slowed down so I made the switch from Maxigro to Maxibloom 5 days ago. Another question is about flower development, not much action going on - the flowers showed up about 20 days ago.

IMG 0088

Should I worry about what is going on (cause I really am... lol)?

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Macky
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Those brown marks are usually down to wind burn or burn from a light mate. The plants look good any healthy other that those affected leaves. 

Seems like the EC is a little low fro plants that size, in DWC too. But im pretty sure them leaves are not damaged by a deficiency or excess. Are they right by a fan or intake vent?

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Leo
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Yes, can be the intake duct. Due to space restrictions, I have a flex duct coming through the top blowing in a corner from the intake fan. I'll see what I can do today.

About the EC, if I understood correctly I should wait for a drop before I can raise it? I measure the EC before any adjustments (top off the res, PH control) and it's always in the same range, but the PH is actually going down slightly every day now....

Do you think I should give another shot and bring it up to 1.0 or 1.1? If so in how many days I should expect her to adjust to the new levels? I waited almost 2 days last week and it kept fluctuating to 1.4.

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Its just about how much you give her, its about making sure she gets the right amount of what she needs Smile Give her some more PK, and a bit more calcium, but leave nitrogen as it is if you can. So leave the a n b as it is, but just add some pk and and cal mag to bring the EC to 1.0 and see how she goes 

 

 

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Leo
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You mean something like Canna PK 13/14 that you are there? I can find something like Big Bud or Koolbloom here, the options are limited. I only have base nutes at home right now (maxi series)

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Leo
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Hey @macky

If you're like me you prefer videos to pics, so I decided to upload one this time lol

Take a look how she's doing now - entering week 13 ? 

She's under 12/12 light cycle for a 4 days now to see if it encourages flower development and managed to raise the EC to 1.1 (about 0.1 is liquid koolbloom). How is she looking mate?

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February 22, 2020