Looking for answers

[Kystro]

Could it be a nutrient deficiency? It's 12 days old and I've only used voodoo juice so far... I've not added any grow fertilizer yet as I was told not to add any until week 3... It's g14 and only takes 9 weeks seed to harvest apparently and I'm using bio bizz light mix

 

[blue]

Could it be a nutrient deficiency? It's 12 days old and I've only used voodoo juice so far... I've not added any grow fertilizer yet as I was told not to add any until week 3... It's g14 and only takes 9 weeks seed to harvest apparently and I'm using bio bizz light mix

No, it won't be that. Your leaves will look a pale green if it's nute deficient (it will be lacking in nitrogen)
I use biobizz light mix and will give super mild feedings with an appropriate nutrient before 3 weeks. I would start the "real" nutrients at about day 20ish.

Here are all the correct answers you've been looking for in relation to the leaves curling up (it's a heat and humidity issue)

What are your temps? Might be heat stress.

What's your rH? At this stage it should be 60-70%. Low humidity will cause leaves to curl on young ones, their leaves give off more moisture than the roots can keep up with yet.

Also, under HPS, your too warm. 80* to 85* are LED temps. The IR in HPS drives your leaf temp much higher than LED.
Hps temps 72 to 78 as a high.
The one issue is very likely exasperating the other.

It will grow, and it will be ok rH wise. You'll loose some size off the plant probably. Your temps will cause the flowers to be airy, and high temps will cause issues with nutrient uptake as shes using more water. I'd try and get the temps down, you may get rewarded and see a small spike in rH.

It's a sign of stress.. Usually heat or humidity. Every plant is different.. So just because the environment is dialed in, doesn't mean that the plant will not be sensitive to something in that environment. You want to find the sweet spot for temps and humidity based on the plant. Make small environment changes once a day until it stops occurring.

High Temperature, low RH, poor air circulation and strong light strength can all play a role in "tacoing" leaves curling along the edges to the midline. You are not exhibiting much and I would not be very concerned at this point. Try adjusting just one environmental factor at a time until you see improvement. I would start with getting the humidity up to ~60%.

 

[Kystro]

No, it won't be that. Your leaves will look a pale green if it's nute deficient (it will be lacking in nitrogen)
I use biobizz light mix and will give super mild feedings with an appropriate nutrient before 3 weeks. I would start the "real" nutrients at about day 20ish.

Here are all the correct answers you've been looking for in relation to the leaves curling up (it's a heat and humidity issue)

I also failed to mention I am running a 24/0 schedule... Do you think it would be wise to switch to a 18/6 and see if that helps

 

[blue]

I also failed to mention I am running a 24/0 schedule... Do you think it would be wise to switch to a 18/6 and see if that helps

A "true" autoflower ... should veg and flower under 24 hours light. I however run 20/4 to give them some rest period and save some electricity.
A far better grow than myself advised against 24 hours (mainly due to how well the auto has been bred by the breeder)

 

[Kystro]

A "true" autoflower ... should veg and flower under 24 hours light. I however run 20/4 to give them some rest period and save some electricity.
A far better grow than myself advised against 24 hours (mainly due to how well the auto has been bred by the breeder)

I'm just worried about the leaves, I don't want the plant dying once it's this far so you think 20/4?

 

[blue]

I'm just worried about the leaves, I don't want the plant dying once it's this far so you think 20/4?

Yeah, you'll be fine with 20/4 ^_^

 

[Kystro]

Yeah, you'll be fine with 20/4 ^_^

I know this sounds mad but if I rectify the issue will the leaves un-taco

 

[blue]

I know this sounds mad but if I rectify the issue will the leaves un-taco

Yeah .. and don't worry - there'll be plenty more leaves to worry about soon!

 

[Kystro]

Yeah .. and don't worry - there'll be plenty more leaves to worry about soon!

So you think it will go to term

 

[blue]

So you think it will go to term

If you take good care of her ... but don't kill her with kindness .. Yep. I throw a guess at (hmmmm) 65-70 days more! ^_^