Purple stems....

[CrystalJack]

Alright so yet right after day 21 in flower I get these deep purple stems across the whole room, wanted some opinions on it happened last run as well and can’t figure it out.

little background

grown in 15 gal coco/perlite
under fluence 2i led
running current culture nutrients with a few additives

Have tried flushing them, dimming the lights and no change.

 

[member 505892]

Not just the genetics?

 

[Limeygreen]

Look a bit hungry to me, how were your phosphorus levels and zinc?

 

[CrystalJack]

I tried upping phosphorus last round when I ram in to this issue with no change at all, not sure on zinc.

I do have some strains in here that are naturally purple but I have 4 strains across 2 rooms that are all experiencing these stems for the second round now, last run wasn’t a purple genetic strain .

 

[Creeperpark]

Keep your nutrients steady and the plants will do fine. I wouldn't up anything or change the nutrient ratio of any complete fertilizer, or you will have problems. Your plants look find just the way they are, so don't worry, and don't fuck things up by upping the phosphorus levels. Your plants are OK!!!