Plant turning Purple/yellow, thoughts?

[Oddnudibranch]

Hello everyone!
I was hoping to get some feedback on what may be causing my plants to discolour. I’ll give some details.

2x Blue cookies photoperiod, week 5 flower.
5 gallon fabric pots
4x2x5” tent
Happy frog soil
Spider farmer 2000 Light
Temp day - 23c, night 19c
Humidity 43-48%
Advanced Nutrients Grow Micro Bloom
Growtek Mycorrhizae

I’ve been feeding nutrients every third water, with about 4 days between waters. Water water feed, following the feeding chart I’ve attached. PH 6.2-6.5

just over a week ago I noticed some yellowing/reddening on one plant, near the center of the plant. A few symptoms, such as praying and curled edges let me know my light was too close. At 12”, my light was recommended for 16-18”

I raised My lights, but after another week some symptoms have gotten worse. My plant seems to be turning purple, and yellowing. I’ve done research and it seems I’ve either got a P/K deficiency...or a lockout and a buildup of salts. I’m not sure if I’ve given too much, or not enough. Or maybe it’s not this at all.


When I water with nutrients, I water until what seems to be 10-20% runoff. When it’s just water, I try not to get much runoff. There’s a chance I watered with fairly cold water last time, which I heard could prevent some P/Kuptake.

This is my first grow, so I’m having quite a hard time diagnosing this and choosing a path forward.

Thank you for reading my long post and providing any insight you may have!!

I have done the same routine with the sister plant and it looks much better

 

[weedtech]

Damn. That almost looks like a coleus.

 

[Brotofsky]

They look really nice! I’m no pro, but the purpleish coloring could be genetics, but with yellowing also, could be a hungry plant. Sounds like you only give nutes about every 2 weeks. IMO they are eating themselves for stored foods in the leaves.

 

[HeLLfiReZ]

Bump up the feeding a bit, they are hungry.

 

[4plant]

Looks like genetics to me. Week 5 with a blue strain should start to turn blue/ purple. If your feeding mainly p/k now some yellowing and dying off of lower leaves is fine.

 

[SPARECHANGE]

Damn. That almost looks like a coleus.

i am laughing my ass off, right now. that is exactly what i was saying in my head... i was going to tangent n say- that's gorgeous... leave it!
besides the tips, etc.

 

[SPARECHANGE]

wawawa wait

did i... miss something? the fried tipz, is that new? guys... so we're going with feeding? it's a question, honestly... I'm just looking at the minimally fried tips and his mentioning praying.

god, those r gorgeous purps. what strain is it?

weedtech- can we get his ppm/ec, just in case? those tips...
I've been mistaken, before... bout 5min ago, in point of fact.

I've yet to c weedtech, ever b off his mark. i.e. i believe em. just don't want to miss anything.

 

[Oddnudibranch]

Thank you everyone for the responses! I was leaning towards hungry as well, as I know one every week and a half is not much. But I also know some people don’t really use nutes much at all. Learning experience for sure!!

Unfortunately I don’t have my ppm

im going to go ahead and give them a feeding today and maybe switch my schedule to water, feed, water. Again thanks you everyone!

 

[Dr.B]

Hungry... Those purple leaves with the green fringing are absolutely gorgeous!!! That's genetic, the plant is approaching the "fall" of its life. In fall leaves change color... The tips are another thing but all in all it looks good. How long is the photoperiod for this strain? You might be in flush time soon anyway...

 

[Dr.B]

Hungry... Those purple leaves with the green fringing are absolutely gorgeous!!! That's genetic, the plant is approaching the "fall" of its life. In fall leaves change color... The tips are another thing but all in all it looks good. How long is the photoperiod for this strain? You might be in flush time soon anyway...

Lol, just looked again. I'm guessing 10 weeks for photoperiod? Buds are just getting going.