Plants look oerwatered?!

so, I've been vegN gsc
In a 4x4 tent when I first put the plants in I had the ballast on 400w
After about a week
I turned it up to 600watt
About a week and a half after I turned it up to 1000watt

The plants have not been watered in about 3-4 days
I know they are not overwatered


The middle vein on most leaves is turning purple
And the stems are very purple
(I know gsc grows a little purple but not like this.)
Some of the older lower leaves are turning dark purple almost black
And curling up

Also some leaves are clawing down


Majority of the leaves are lighter than I think they should be


I've been mostly giving water
I
Have give a small dose of veg nutes Last watering

So I'm wondering what's causing this and how to fix it

The runoff is 7.4-7.8 ph
I've read and been told in organic soil which I'm using u don't need to worry about the ph
(Idk if that's true)

Basically the only things i have done different is feed em a tiny bit
And up the light.....

Plants feel stiff, N leaves N tops are sagging anyone help!

It doesn't look right too much purple...

maybe a little chilly at night ?

Chilly causing stiff saggy leaves?

With purple veins?

Looks like p deficiency,but you could have salt build up as a cause,have you leached the soil yet?are you ph ing your feeds and if so what to?

P deficiency causes purple stems and blue/black leaves,lower fans will procede to die off the plant of it goes further.

No I'm not phING water

The runoff is high 7
7.5-7.8

I was told in organic soil my ph wouldnt matter...

Temps at night 64...?
Could low temps caus lock out?

There are many things that affect phophorus uptake,cold temps is a main one,light intensity as phosphorus is heavily used in photosynthesis and root ph too low.

Cookie_rookie said:

Temps at night 64...?
Could low temps caus lock out?

Click to expand...

60f is borderline low but I dont think it would cause this bad of a problem.ph/salt build up seems most likely.Id leach those pots out with a balanced npk profile ph'd to 6.5.you are gonna want a good amount of runoff,people say 3 times the pot volume,but I just monitor runoff ec,its not exact but works fine for me.Generally ph doesnt matter as much in soil unless its not ammended properly or you are using a ton of chem nutrients.If the salts build up in there it will drive the root zone ph down and lockout p.

I've only given em nutes once...
Just water...

I've upped the light...

And the ph is high not low



Well since I've started trying to grow in a tent I've had noting but problems

Likely lost another crop and a lot of money.

Ph range for p uptake in soil is 6.2-7.0...you either need to add more p or get your ph straightened out.

Cookie_rookie said:

I've only given em nutes once...
Just water...

I've upped the light...

And the ph is high not low



Well since I've started trying to grow in a tent I've had noting but problems

Likely lost another crop and a lot of money.

Click to expand...

Nah this is easily reversible.And that youve never fed them at all,should have been info you provided in the very first post.

Cookie_rookie said:

Temps at night 64...?
Could low temps caus lock out?

Click to expand...

I've seen otherwise healthy plants look similar to yours in cold environments where they were maxing out in the low to mid 60's. Cold rootzones make for unhappy plants.

Cookie_rookie said:

I've only given em nutes once...
Just water...

I've upped the light...

And the ph is high not low



Well since I've started trying to grow in a tent I've had noting but problems

Likely lost another crop and a lot of money.

Click to expand...

lawlrus said:

I've seen otherwise healthy plants look similar to yours in cold environments where they were maxing out in the low to mid 60's. Cold rootzones make for unhappy plants.

Click to expand...

Ya I was worried about temps,65 didnt seem bad enough but I guess its worth a try to raise the temp and see if it improves.The joys of indoor winter gardening...

The vents are on the foor in the tent
I have it running passive intake
So the air that comes in is super cold
But I figure mixing it with the 1k at canopy the low is 65

I'm so frustrated and stressed
Third try after spending more than I should have on my setup
Had to throw away away the plants two other times

Resinhound said:

Ya I was worried about temps,65 didnt seem bad enough but I guess its worth a try to raise the temp and see if it improves.The joys of indoor winter gardening...

Click to expand...

If your canopy temps are only hitting 65 then I guarantee you your rootzone is too cold. Get some insulation of some sort underneath (a cheap piece of 3/4" styro with the foil coating is roughly R6 insulating value and will help) and dial down your ventilation if need be. Are you growing in an unfinished garage? If so, I feel your pain and recently had to bite the bullet and build a fully sealed and insulated room within the garage just to get on track.

Growing in my bedroom