Plant stems staying purple

PriznnPlanet · Apr 6, 2017

Anybody know what's keeping my 3 week old clones completely purple? New growth shows green then goes purple immediately. I started off with a lockout due to old meters. I got new bluelab meters for both PH and EC. Flushed with a low dosage .5 EC for a few days.

I have since switched my nutes to Canna at 1.1 just A&B with Cannazyme ph is 5.8-6.0. My tap comes out at .1 EC but have no idea what's in it. I did a 70/30 Tap/RO just in case something funky. My seedlings were also affected but seem to have pulled out they never went purple though.

T5 8 bulb light
Temps 77-81
RH45-60%
PH 5.8-6.1 Bluelab
EC 1.0-1.2 Bluelab
Passive intake that I haven't really been running to keep the humidity up

Asslover · Apr 6, 2017

How are the roots? Healthy and White?
I sound like a broken record asking that but 99% of the time problems in coco can be traced to unhealthy roots...

PriznnPlanet · Apr 6, 2017

Asslover said:
How are the roots? Healthy and White?
I sound like a broken record asking that but 99% of the time problems in coco can be traced to unhealthy roots...

Actually the roots look nice and white. I just xplanted from the small waxi cups to pots and they're already coming out the bottom. I definitely had a lock out early on. Figured by now they would be praying to lights like the seedlings are starting to do. Don't mind the coco on the roots was sitting on some loose flock before transplant.

Encrypt · Apr 6, 2017

Can you check the runnoff readings?

PriznnPlanet · Apr 6, 2017

Encrypt said:
Can you check the runnoff readings?

I'm Flood and Drain EC is 1.1

Mikell · Apr 7, 2017

Can you measure soil temperature?

A meat thermometer works fine. For the larger pots I would poke the thermometer in the drain holes too.

How often are you changing nutrient? What is reservoir temperature?

BakedBandit · Apr 7, 2017

Ec sounds a little high for young uns

PriznnPlanet · Apr 9, 2017

Mikell said:
Can you measure soil temperature?

A meat thermometer works fine. For the larger pots I would poke the thermometer in the drain holes too.

How often are you changing nutrient? What is reservoir temperature?

Temps are 72 in rez, the room is 76-78ish, just started this rez was top feeding until my roots were showing. I use is char coir and it says cal must be supplemented. I figured there's enough in my canna nutes?

brainzfuxed · Apr 14, 2017

From my understanding isn't red stems a potassium or cal mag issue?

Miraculous Meds · Apr 15, 2017

What strain is it? Could be too wet or dry, but the roots look pretty good for either of those scenarios. What's ur air circulation like? U say passive intake? Then do u have an active exhaust?

dutty · Apr 30, 2017

Like alrdy tried to explain in the other thread: High ph in your Coco. To much Ca, to much N. Mentioned by BakedBandit: To high EC for little ones, go 0,6 to 0,8. Theres a mg def (light clouds on your leafs) since the Ca from your calmag repressed your mg in your medium and the high ph locks out P (blue purple lower big leafs, purple stems).

Use the (Canna) Coco Test to be sure (or buy a soil ph meter): Take 250ml vessel, fill 100ml deionised water, fill to 250ml with Coco samples from your pot. Stear, let sit for 30min (Canna says a night, but thats not rly necessary), filter, measure ph (and EC if you want). Ill bet its near 6,5ph, definitely over 6,2.

+Use Cannazym with Canna AB, it pushes your NPK ratio to more PK (adds 0-2-1 whats
about 20mg p and 20mg k) whats definitely needed and always adviced in Canna shedule. Throw out Calmag! No additional N, Ca and Mg needed!

jidoka · Apr 30, 2017

You have a Mg def. push it up to 70 ppm and voila

CaptainKrunch · May 2, 2017

I had this same problem using canna nutes. flush again and then use a lucas formula ...get some flora nova. stuff works great and it really cheap it will give them everything they need to snap out of it. you can use the rest of your canna when they get bigger and snap out of it

CaptainKrunch · May 2, 2017

wow didnt relize the dates on this thread lol :dance013:

Gelado` · May 2, 2017

Don't many strains just have purple stems anyway?

audiblecolors · Dec 3, 2017

Same issue will have pictures asap

Same issue will have pictures asap

Hey im having purple stems first time coco grower. Running heavy 16. :dance013:

Cannazyme ,rhizotonic, fulpower, slf, roots, prime, i need some advice to simplify thiz. Thanks in advance

Dropped Cat · Dec 5, 2017

Those stems are dark.

Some of the strains I flower have purple on the leaf stems,
no worries for me, but yours seem fucky.

Keep us posted on the remedy.

Azeotrope · Dec 6, 2017

Looks like a 'trait'. I worked a certain breeding mission for years (Sweet Blue male x Johnny Blaze fem) that had DJ shorts special sativa pheno blueberry male as he grandfather on both sides and a purple stems were more common than not.

slownickel · Dec 6, 2017

Purple is a phosphorus deficiency, usually caused by a Mg or K excess. Often looks like a Mg deficiency too! Your EC is already too high.

Just foliar with pH down (p acid) at 0.4%

And flush!!!!

Azeotrope · Dec 6, 2017

Sometimes...... Some strains do it naturally

Plant stems staying purple

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