Curled leaves first grow help

[chickenhead420]

So 1 have 4 plants going right now. They are under a 1000w HPS dimmed to 750w, about 2 feet away. They are in 5 gal buckets with hardware store soil that had perlite mixed in. They have an new york city autoflower strain. They are in a 4x8 tent with air cooled lights and exhaust fan through carbon filter. They have gotten some plain fresh water small sprays and feeding until a few days ago, they got their first feeding of a small weaked dose of Sensi grow A/B and a dash of Iguana juice grow, pH about 6.5, dechlorinated tap water, with pH down. Temp is about 77F and RH is about 35% at the planter and 76F and 50% at the top of the tent. They about 10/11 days old from when they sprouted out of the soil after being germinated. I only have a big box fan in there blowing on them, which I turned down and away from there as I read that could be part of the problem. (I think any spots on the plants are from where I splashed nuts pouring too fast)



As you can see from the photo's



#1 looks fine I think and going good.

#2 and #3 are both curling their top leaves up. The soil is moist, water drained out last night when I gave them about 3-4 liters each.

#4 just looks weird and different than the rest. It's a very dark green and the leaves look weirdly shaped.



For #2 and #3, I've read that it could be heat stress but the air cooling keeps the lights very cool, no heat from my hand underneath and I've been raising them a bit day by day in case it was that with little effect. I also read it could be the fan blowing too much on them, so I moved it to blow against the walls of the tent and getting deflected air flow instead of direct as I could be drying out the leaves too much with the fan directly on them. I only did that today so I don't know if that will help. I read it could be the roots and soil too compact, but I got good drainage from watering. I know next time I will mix in extra perlite or get better soil and I'm hesitant to just dig them up to see how the roots are or anything yet. It could be humidity I've read too, so I'm going to try a bowl of water in front of the fan for now to help a bit maybe and look at a humidifier.



Whats up with #4? lol. Just different phenotype in the strain and not stablized or was it stunted? It did pop out with "helmet head" that I had to remove with tweezers.



Anyways, thanks for the help. Anymore info, let me know what you need to know. I have 3 more that just popped from the soil and 3 more germinating so far on the otherside of the tent with the lights higher and only on 600w that are doing ok so far.

 

[Resinhound]

Too much light intensity or heat,indica leaning autos dont care for highly intense light during veg...the plant is curling leaves to limit exposure.Rh is a little low for veg as well,put a pot of water in there try and get it to about 55 or 60%

 

[chickenhead420]

thanks. I'll try boosting the lights up another 6" or so and see how they react.

any idea why #4 looks so different with the rounder leaves and darker green colors?

 

[Resinhound]

Hard to see colors really under that light...rounder leaves dont mean anything each plant might be shaped a little different.. amount of leaves etc...it looks like its affected by the intensity,low rh like the others

 

[chickenhead420]

Thanks. I guess I made the newbie mistake of "how close can my lights be" and went by the hand test. Well with air cooled lights, there is no heat, so I put them close, but now I realize maybe that applies more to full plants and to keep them nice and high during the early days. Live and learn. lol.

 

[whitebb2727]

Back the lights up a little.

How much are you watering and how often.

 

[chickenhead420]

For the first week they got just spraying of the surface to keep it moist (mostly cause it kept drying out everyday, another sign of too much light I guess) and a couple days ago they got their first mix of a full watering till I had run off with a diluted Sensi Grow A/B and a dash of Iguana Juice mixed in. Starting very low with nuts as most say that's the way to go with autoflowers. Actually following a nut schedule from an autoflower forum that many seem to stick by.

 

[chickenhead420]

I raised the 750w bulb about a good 8" or so and it looks like 2 and 3 are recovering already, already from the photo's I posted and took, they look less curled.

 

[miketaco]

So 1 have 4 plants going right now. They are under a 1000w HPS dimmed to 750w, about 2 feet away. They are in 5 gal buckets with hardware store soil that had perlite mixed in. They have an new york city autoflower strain. They are in a 4x8 tent with air cooled lights and exhaust fan through carbon filter. They have gotten some plain fresh water small sprays and feeding until a few days ago, they got their first feeding of a small weaked dose of Sensi grow A/B and a dash of Iguana juice grow, pH about 6.5, dechlorinated tap water, with pH down. Temp is about 77F and RH is about 35% at the planter and 76F and 50% at the top of the tent. They about 10/11 days old from when they sprouted out of the soil after being germinated. I only have a big box fan in there blowing on them, which I turned down and away from there as I read that could be part of the problem. (I think any spots on the plants are from where I splashed nuts pouring too fast)



As you can see from the photo's



#1 looks fine I think and going good.

#2 and #3 are both curling their top leaves up. The soil is moist, water drained out last night when I gave them about 3-4 liters each.

#4 just looks weird and different than the rest. It's a very dark green and the leaves look weirdly shaped.



For #2 and #3, I've read that it could be heat stress but the air cooling keeps the lights very cool, no heat from my hand underneath and I've been raising them a bit day by day in case it was that with little effect. I also read it could be the fan blowing too much on them, so I moved it to blow against the walls of the tent and getting deflected air flow instead of direct as I could be drying out the leaves too much with the fan directly on them. I only did that today so I don't know if that will help. I read it could be the roots and soil too compact, but I got good drainage from watering. I know next time I will mix in extra perlite or get better soil and I'm hesitant to just dig them up to see how the roots are or anything yet. It could be humidity I've read too, so I'm going to try a bowl of water in front of the fan for now to help a bit maybe and look at a humidifier.



Whats up with #4? lol. Just different phenotype in the strain and not stablized or was it stunted? It did pop out with "helmet head" that I had to remove with tweezers.



Anyways, thanks for the help. Anymore info, let me know what you need to know. I have 3 more that just popped from the soil and 3 more germinating so far on the otherside of the tent with the lights higher and only on 600w that are doing ok so far.

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like said before about #4 all types are different...it looks like its an indica dominate and when its bigger will have huge leaves just like it and will grow much shorter

sativa dominate are more thin leaves and will grow much taller ....ull see when time tell's