Flower Week 2 - Burned or Deficient?

Student Of Life · Feb 16, 2017

Having a bit of a dilemma here. The canopy looks ok above the trellis, but down below there's a few symptoms spreading up. This has me thinking it's a mobile deficiency, but I'm not experienced enough to tell what in the world is going on. Pics on this first post are what everything looks like above the trellis. Pics on post #2 display the issues down below.

pH is between 5.9 and 6.1
EC between 1.4 and 1.6
Temps 74-82, humidity 50-65
Water twice a day. Over-vegged with big trunks and root systems stuck in 5gal pots, so they drink twice a day or the coco dries.

Student Of Life · Feb 16, 2017

And here's the plague from beneath.

gr866 · Feb 16, 2017

Show it with lights off.
My guess and only a guess is mag x.
Have had it before.
GR

Student Of Life · Feb 16, 2017

Can't do any better than that with the photos. Those were taken (besides 2 of them) through method 7's. The room only has HPS bulbs and no green/white light, so I'd have to drag in an extension cord and a lamp just before lights on and tinker around. By mag x do you mean excess/toxicity?

gr866 · Feb 16, 2017

Deficiency

That's a guess, you have to give us better pictures or I know I can't help you.

GR

Artisancrafted · Feb 16, 2017

Hey there just remember if the symptoms are happening at the bottom of the plant the Deficiency is a mobile nutrient if it starts at the top new growth that means it's an immobile nutrient

Artisancrafted · Feb 16, 2017

Just remember also to always keep your Coco at 50% Moist if you let it dry out more than that then the potassium level rises and it locks out the calcium and magnesium maybe that's why you have a Cal mag issue

gr866 · Feb 16, 2017

Artisancrafted said:
Just remember also to always keep your Coco at 50% Moist if you let it dry out more than that then the potassium level rises and it locks out the calcium and magnesium maybe that's why you have a Cal mag issue

Hey, don't get damn defensive. If you don't like the answer fuckit.

I don't have the problem, you do!

GR

NorCalGro · Feb 16, 2017

Student Of Life said:
And here's the plague from beneath.

Check the runoff ppm if you don't let a small amount off runoff to flush salts the ppm can rise quickly in coco and it looks about like that.

mango420 · Feb 16, 2017

How often are you feeding? Everytime u water? Most likely a buildup expecially if you've been in those pots for a while.

Student Of Life · Feb 16, 2017

gr866 said:
Hey, don't get damn defensive. If you don't like the answer fuckit.

I don't have the problem, you do!

[URL=https://www.icmag.com/ic/picture.php?albumid=71652&pictureid=1707788&thumb=1]View Image[/url]

GR

LOL you messed that one up gr8! I think you mistook that poster for me.

Student Of Life · Feb 16, 2017

mango420 said:
How often are you feeding? Everytime u water? Most likely a buildup expecially if you've been in those pots for a while.

NorCalGro said:
Check the runoff ppm if you don't let a small amount off runoff to flush salts the ppm can rise quickly in coco and it looks about like that.

I get runoff every time I water. I'll check the runoff ppm when I water later today. I feed every time I water, which is twice a day.

Student Of Life · Feb 16, 2017

Student Of Life said:
I get runoff every time I water. I'll check the runoff ppm when I water later today. I feed every time I water, which is twice a day.

On second thought, there have been a few days during flowering so far where runoff didn't happen. They were flushed out before flower down to .4 EC. Can salt buildup happen so quickly? I'm about to fill the res and feed, I'll report back with what the runoff ppms look like.

Student Of Life · Feb 16, 2017

Well the ppm going in was 850 (Hanna scale, so 1.7 EC) and 1000 coming out. That doesn't seem like a problem to me. I had a 2 EC difference (1000 ppm) when I flushed out the pots before going into flower, and they weren't even showing any negative signs at that level of buildup. I think what's happening is that they're just not getting enough food/water.

They're hooked up to a manifold watering system and a timer. I am around in the morning for their first meal to make sure they get runoff and cleanup any mess that is made in the process. The second meal of the day is automated and I'm not around for it, so I probably set it too short to be on the safe side. Just a hunch. I'll increase how much water they get this evening and see how the coco feels to the touch tomorrow morning.

gr866 · Feb 16, 2017

Student Of Life said:
LOL you messed that one up gr8! I think you mistook that poster for me.

Yep I did, you know that was meant for you, not Artisancrafted,
I appoligise to Artisancrafted. Must of been the bowl of Green Crack, LOL

Anyway no hard feeling there SOL

GR

stoney917 · Feb 16, 2017

What brand nutes? Any additives? You in Ro water? How many , what watt lights ?Co2? If your at 1.7 ec it's more likely to much of something causing issues... I wouldn't add anything

HqFarms · Feb 16, 2017

You have lockout do to nutrient toxicity and/or salt build up. Flush flush flush and cut back your nutes

Student Of Life · Feb 17, 2017

stoney917 said:
What brand nutes? Any additives? You in Ro water? How many , what watt lights ?Co2? If your at 1.7 ec it's more likely to much of something causing issues... I wouldn't add anything

Ro water
Canna Coco AB
GH Calimagic
AN Big Bud Coco
6 x 1000w HPS
Co2 set to 500 ppm

Well today was the 'add more' experiment res, which will be emptied by tomorrow morning. If they look worse, it'll be time to move over to the 'add much less' res lol.

Student Of Life · Feb 17, 2017

HqFarms said:
You have lockout do to nutrient toxicity and/or salt build up. Flush flush flush and cut back your nutes

Thanks Hq. So does toxicity/salt build up start showing itself on the bottom of the plant and work it's way up? The only signs I'm seeing on the top of the plant are some very lightly yellowed leaf tips, as if they've been ever-so-slightly nute burned. But the damage on the bottom is much more ravenous, and has a different look. As shown in the images, it's sort of like a cripsing of the leaf from the outside in.

Student Of Life · Feb 17, 2017

gr866 said:
Yep I did, you know that was meant for you, not Artisancrafted,
I appoligise to Artisancrafted. Must of been the bowl of Green Crack, LOL

Anyway no hard feeling there SOL

GR

LOL No hard feelings gr8, thanks for the advice brother

Flower Week 2 - Burned or Deficient?

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