Dark purple new growth

[Satguy]

All of my plants are getting dark purple or black on new growth! Stunted growth and twisted
indoors temp 75 day, 65 night led lights in
FFOF no nutes yet 4 weeks filtered water with ph 6.0 ?

 

[Nute]

To cold at night try to keep it 70 at dark maybe 78 lights on

 

[OlderNOTwiser]

Someone had a very similar plant this past summer/fall. I'll try to find it. Maybe there was a resolution?

Found it: https://forum.growweedeasy.com/forum/growing-community/328624-new-growth-is-black-what-up

 

[Gingerbeard]

Is it a purple strain?

 

[JDU]

That may have been me you're thinkin of.... I tried to fim a branch by pinching it like the GWE article mentions but I finally cut it off cause it looked exactly like that.

Oh lol guess not but I did have one. I just topped it & it's doin great now.

 

[Satguy]

It is a stawberry cough

 

[Satguy]

I have changed soil no diff.
went from distilled to tap thru a brita
and even tried spring water all tested with digital ph meter also with drops and kept at 6.0
went back to FFOF with these seedlings and a
some clones from afghani landrace.
it also is only in 4x4 veg tent it seems like the couple I put in 4x8 flower tent stopped the stunted growth and started to stretch and turn back to normal except very very small buds!
The larger tent temps don’t range as much as the veg tent because my humidity is higher in veg. But because I use LED I don’t have much temp diff when off? I’m stumped if it isn’t temps
Thanks for the help 👍

 

[Gingerbeard]

Phosphorous lockout. Google that and scroll the pictures for what you're showing.

 

[OlderNOTwiser]

Looks like they're hungry.

 

[Satguy]

Thank you for your insight
after just a couple days of raising temps 5 deg and adding some bloom nutes for the high phosphorus and they all are showing green on new growth inside the dark purple
so seems like you guys called it 👍