What is CAUSING THIS

If u notice the leaves are really skinny and sad would under watering do this? It's under a actual 200w led ph. 6.4 light is around a foot away

dude....no....that's a sativa....or at least a sativa heavy mix, they just do that. looks pretty healthy to me, actually.
i don't see any leaf edge curl, which is one of the first signs of heat/low rh stress. the longer thinner fingers will sag a little, just how they're made.
what kind of medium are you growing in? what are your average temps and rh? what and how much are you feeding?

It's fox farms ocean forest. Temps average 81. I feed 4 grams of megacrop. Humidity around 60. It's mostly the new growth though that's the only thing the rest don't look that way. Also this grow is a 2fast2vast. I got a couple difderent ones going

i wouldn't worry about it too much, sometimes when you start flowering, they'll start throwing different leaves, like the hormonal change expresses other phenotype traits. i don't think it's ill, just keep doing what you're doing unless it starts to show some changes for the worse

I wouldn't be so sure it's just the sativa trait. The leaves look excessively skinny. Plant trait aside, what causes skinny new growth in that way is an excess of potassium and or phosphorus, or a zinc deficiency..which can be locked out from the excess p or k. Being a sativa dominant, they don't eat as much, and your fert has '14' potassium in it? I think try reducing or cutting out the food for a bit.

Looks a bit over fertilized to me. The first pic shows burnt tips.

Sativas can be very delicate and picky about feeding.

I would run some fresh water through to good runoff and then add back a lesser strength of a complete balanced grow nute to help reset and re nutrient the medium.

i've never had p or k make thin leaves. maybe i've just never given them enough. all i've ever seen it do is burn tips white.
guess it couldn't hurt to cut back some.

Thanks you everyone foe your input but it's 80 percent indica 20 percent sativa I don't know if I threw y'all off somehow. So should I give them a good flush ? It's a 5 gallon pot how much water should I run threw

I wouldn't flush, I agree with Rodger I would carry on, but it also doesn't look like an Indica at all, any chance you might have mixed up a seed?

Edit: I looked up pictures of that strain that's a normal plant I suggest you look up pictures of it as well because it looks like the plant in the pictures, very sativa looking. Google too fast 2 vast pictures

So I'm wondering if the company made a mistake I know I did not mix anything up bit hey it's growing strong and ok will do ty

Beachwalker said:

I wouldn't flush, I agree with Rodger I would carry on, but it also doesn't look like an Indica at all, any chance you might have mixed up a seed?

Edit: I looked up pictures of that strain that's a normal plant I suggest you look up pictures of it as well because it looks like the plant in the pictures, very sativa looking. Google too fast 2 vast pictures

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What kind of plant did u look at what do u mean it looks like a regular plant. I looked up a strain review for those too fast too fast and they were saying that it was 80% indica so I just wasn't sure what you meant in that message are you saying that it does look like a 2 vast too fast or are you saying it doesn't

DirtyDogs446 said:

What kind of plant did u look at what do u mean it looks like a regular plant. I looked up a strain review for those too fast too fast and they were saying that it was 80% indica so I just wasn't sure what you meant in that message are you saying that it does look like a 2 vast too fast or are you saying it doesn't

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I Googled '2 Fast 2 vast pictures' , they're very sativa looking plants, so I'm saying that they look a lot like your plant.
- good luck

* I'm sure someone here has grown it, maybe find the best forum and start a thread with the name in the title and seeking info ? Good way to pick up strain specific growing tips too!

Great idea thank you very muxh