Brown Spotting! Autoflower White Widow

[Dutchman1990]

So for the past week there’s has been brown dots forming. Not sure what the problem may be!
Thoughts? Solutions?

Last feed Ph was 6.4 going in but I didn’t feed till runoff.
Her sisters don’t have any issues. Besides the browning spots the plant seems healthy and is
Room temp is 78’F RH50%

 

[Dutchman1990]

 

[Dutchman1990]

It’s mostly just on fan leaves that I can see.. I’m wondering if I need more CalMag? Or to adjust my ph ?

 

[MrSauga]

What medium are you growing in? It looks like too much N, judging by the darker green, spotting, and the fact the leaves look like they are clawing down. Too much N and it may have locked out other nutrients.
We would need to know the medium to make sure you are at the right pH

 

[MrSauga]

Are you feeding it any nutes? If so how much? What type of water is she getting?

 

[Dutchman1990]

Hru @MrSauga ! I’m using Promix HP and in running AN PHperfect nite line, using distilled water and 1/2 strength nutes

 

[MrSauga]

OK good, so before you do anything else you need to get that pH down a bit. You are in a soil less mix with the HP, and you need to be in between 5.6 and 6.0. Ideally shoot for 5.8. I would also drop the nutes down to 1/4 or none at all until the plant can get out of any nute lockout.

 

[Dutchman1990]

Ok thanks for the advice ! Quick question my next water I’ll water to runoff and I’ll make sure I’m using 5.8 going in. Should I be adding CalMag still to the water or just straight pHed water at 5.8??

 

[MrSauga]

I've only used the AN PH Perfect once, and although I don't understand how it works when I tested my mix my solution was nowhere near the pH I was shooting for. I'm not saying it doesn't do what it's supposed to, but it just seemed odd that ph perfect didnt register perfect with the meter.

 

[MrSauga]

Just water, you've locked out the Ca and by adding calmag you risk overfeeding it when the roots start to suck up the good stuff in there. Have you been feeding it at 6.4 for the most part each feeding?

 

[Dutchman1990]

@MrSauga surprisingly enough I’m finding the ph perfect nutes to be great! They bring the ph down to 5.6 Everytime without me having to add to change anything there after. I was however adding ph up to get it above 6 because I wasnt thinking promix was similar to coco but not the same on that ph needs to be lower than soil! Again huge shout out Mrsauga much appreciate the help!!

 

[MrSauga]

@MrSauga surprisingly enough I’m finding the ph perfect nutes to be great! They bring the ph down to 5.6 Everytime without me having to add to change anything there after. I was however adding ph up to get it above 6 because I wasnt thinking promix was similar to coco but not the same on that ph needs to be lower than soil! Again huge shout out Mrsauga much appreciate the help!!

Sweet, so yes it is perfect for soiless then. I was in soil using it, so that's why it never matched up for me.

 

[Dutchman1990]

The girls need a watering tomorrow so I’ll run 5.6 through them and see what comes out ! Hopefully I’m not to high in pH!! And I have been running 6.2-6.4ph for the past few weeks I can’t remeber What I read that made me change my ways .... I’ll revert and go back to what I started off at of 5.8.... silly stoner I am gosh!

 

[Dutchman1990]

I’ll flush them tomorrow then, what would you expect to be a turn around time to see a change ? 3 days? 1 week? Just curious !

 

[MrSauga]

The girls need a watering tomorrow so I’ll run 5.6 through them and see what comes out ! Hopefully I’m not to high in pH!! And I have been running 6.2-6.4ph for the past few weeks I can’t remeber What I read that made me change my ways .... I’ll revert and go back to what I started off at of 5.8.... silly stoner I am gosh!

The damaged leaves cannot be fixed, but it should do fine for the remainder of her life.

 

[MrSauga]

You're not really going to be getting any new growth, but any leaves not damaged will be fine.

 

[Dutchman1990]

Yes i didn’t think the damaged leaves would come back! I just want to make sure I change any issue and address them right away ! I started noticing this over this past week and have tried to figure out myself but didn’t even realize how out of whack my ph is silly me... but thank you again for all your help I’ll post tomorrow on my flush reports !
Thanks sauga ! This ones for you!

 

[Dutchman1990]

Yea new growth at This point I’m not expecting as she’s well into flower now! I just want to make sure she’s happy and healthy for the rest of the way through !!

 

[MrSauga]

It's all good, just passing along what others taught me. It's a great community!

 

[Dutchman1990]

Indeed it is! Great place and I have learned some invaluable growing tips here and met some incredible people in the short time I’ve been here! Looking forward to years of growing and being apart of the
community !

One last thing. After a flush this time.... should I start nutes again next watering at 1/4 strength then go back to where I was at 1/2 strength ? Or should I continue at 1/2 after flush ?