What the hell is this?

[MerionMatt]

This is the same strain I've been growing for years and never have seen this before. The only thing that's different is I tried FFOF instead of roots organic this time. These are in veg about to switch to 12/12 and I can't figure it out.. it's not spider mites like other sites have suggested, I got the microscope out and everything is good. My humidity is a little low I'm like 76-78f and 40-50%RH and that's as good as I can get it.

 

[projectinfo]

Mg Def, did you just start using leds?

 

[dubekoms]

You feeding them anything? Need a whole plant picture in normal lighting if you want any real help.

 

[MerionMatt]

Yea they get calmag every feeding

 

[MerionMatt]

Mg Def, did you just start using leds?

. Is calmag not enough? I've used the same process every time only changed out different soils. Led always.

 

[MerionMatt]

You feeding them anything? Need a whole plant picture in normal lighting if you want any real help.

And all the essentials, maybe I need to up the dose on mag

 

[charface]

Is there some major stem damage I can almost see in the pic?
Like from training or something?

 

[MerionMatt]

A few normal light pics

 

[MerionMatt]

Is there some major stem damage I can almost see in the pic?
Like from training or something?

Yes this one I'm not tying down as much but I'd say pretty heavy training

 

[Roger A. Shrubber]

looks like Mag. to me. what are you ph'ing at? have you checked your ph meter recently?

 

[Nafydad420]

def a calcium deficiency.http://www.growweedeasy.com/calcium-deficiency-cannabis

 

[yourlook]

I am still on my first grow, but one of my plants had some cal/mag problems in the beginning that looked like yours. I too was/am using cal-mag, all I did was upped the dosage by 20-25% of what was recommended and raised the PH up a bit. It fixed the problem for me.

 

[MerionMatt]

I PH at 6-6.5

 

[Roger A. Shrubber]

i'd try 6.5-6.8, dropping below 6.5 isn't supposed to lock out Mag, but some plants are strange

 

[Dabber68]

@MerionMatt Ok from reading seems like you have the bases covered so I'm gonna say you have wind burn I could be wrong just a newbie on his 2nd and 3rd grow
http://www.growweedeasy.com/cannabis-wind-burn

 

[Bernie420]

Yea they get calmag every feeding

And what else are you giving it? looks like a phosphorous deficiency to me

 

[Tjs1989]

It looks like phosphorous deficiency to me as well.

Purple stems.
Dark color on older leaves w/
Bronze spots

 

[MerionMatt]

It got worse today and here's the other thing it's only on one plant, all the others are fine And all are same strain. So I use FF main three and have been for years. So now it's just big bloom and grow big. Do you think I should try adding some of the tiger bloom too for extra phosphate? Or should I go grab something more precise?

 

[MerionMatt]

Here's another plant that tied down but you can still see there's no rust looking marks

 

[MerionMatt]

It looks like phosphorous deficiency to me as well.

Purple stems.
Dark color on older leaves w/
Bronze spots

Thanks by the way