Is This Nute Burn? (Week 5 Autoflower)

staygreener

Well-Known Member
Previous Post: https://www.rollitup.org/t/autoflower-3rd-week-explosion-some-minor-lst.886027/

First, the glamour shots (pic on the right is the plant on the right):
IMG_20151021_182758535.jpg IMG_20151021_182742176.jpg IMG_20151021_182751318.jpg

Together, these two small plants stink the crap out of my tiny tent. A little shake just fills the air with a great smell (first grow, I don't have discerning nostrils yet).

I have been having a problem with something that looked bright orange under my LED's for quite some time and have ignored it until now. I either give it plain water, 1/3-1/2 strength nutes (every 5-7 days), or plain water with Fasilitor (aptus regulator, I add this at 33% strength which is .2ml per gallon); started with 75% FF Ocean Forest & 25% perlite, two five gallon smart pots. Phing around 6.5, ppm at 250 regular, never let it go above 800 with nutes. I tend to give my plants a half gallon of water three times a week (once with nutes, once with Fasilitor, and once with plain). I did a mini flush last week (ran 3 gallons through) and the first bit of runoff had a pH of 6.5 (the water I ran through it was pH'd to 7.0 +/- .1).

Here they are, these portions that are dying off are predominantly out of direct light and not on the canopy. My greatest fear is that I have some kind of mold, but these pictures in regular light make me pretty confident I've just been overfeeding.

Plant on the right (presumed delicious seeds cheese candy auto, 35 days from germination):
IMG_20151021_182810890.jpg IMG_20151021_182839984.jpg

Plant on the left (presumed dr krippling smokin gun auto or incredible bulk auto, 35 days from sprout):
IMG_20151021_182920156.jpg

Conditions (I took a picture with annoying glare):
Humidity: 41-53% (this is unavoidable, I'm already paying $2/day to dehumidify, would be 70% otherwise)
Temp: 72-75F
CO2: 400-1100 PPM (Most of the time it's 600+, 400 is rare)

So, do I have nute burn or is it something more serious? Other comments are more than welcome.

Edit: Let me be clear. I was previously watering it every three days, but I changed up airflow in my room and my plants started flowering, I'm watering every two days out of necessity, they're drinking that much.
 
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staygreener

Well-Known Member
Has nutrient infused water splashed on the leaves at all?
I have been pretty careful, I load water in with 1-pint snapple bottles (mixed from a gallon jug). I could see some damage, but not at this level. I'll make sure and be more careful when watering as well, just to be sure, thanks for the tip.
 
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