weird leaf curl

[kp^]

Soil: Fox Farms Ocean potting soil.
What STRAIN are you growing? bagseed.. chronic
What was the establishing technique? seed
What is the age of your plants? ~16days
What PHASE: veg
What Technique are you using? straight veg, nothing special but 24/0 light
What size pots are you using? 3gallon
What substrate/medium are you using? fox farms ocean potting soil
What Nutrient's are you using? none at this time
What is the TDS/EC/PPM of your nutrients used? n/a
What is the pH of the "RUN-OFF"? unknown
What method of pH test was administered? n/a
When was your last water? ~12 days on transplanted into 3gallon pots.
When was your last feeding and how often are you feeding? n/a
What size bulb are you using? 400w mh
What is the distance to the canopy? 6-8"
What is your RH Factor? (Relative Humidity) 30%
What is the canopy temperature? ~84F
What is the Day/Night Temp? (Include fluctuation range) 73F-87F
What is the current Air Flow? (cfm etc.) 250 dayton in c13 style cab
Is the fan blowing directly at plants? indirectly.....
Is the grow substrate constantly wet or moist? no
Is your water HARD or SOFT? soft
Has plant been recently pruned, cloned or pinched? yeah all three
Have any pest chemicals been used? If so what and when? n/a
Are plant's infected with pest's? no

Why is this plants leaf curling like shown in the image below? what's it craving? need? should even worry?

Thinking about going scrog, but still in veg for at least 2 more weeks. Not sure if I should add something organic or just wait it out till the next watering.

The plant in question.



The other plants.


Any ideas, and or suggestions are appreciated. Thanks!

 

[MadCow]

Looks like heat to me. 6 to 8 inches is close unless you got an air cooled hood. Maybe this pheno doesn't like the soil, but I say heat.

 

[Blackvelvet]

Switch from 24/0 to 18/6 light. 6" away is close. I would raise the light to about 1' simply due to the heat. After about 3 weeks in ocean forest, you should begin weakly feeding with every watering. You will have better results if you ph adjust the fert water after adding everything.

 

[Core]

heat and low humidity will do that to ya plants..

 

[MynameStitch]

yup, I agree with Core; low humiidty and dry heat is causing your leaves to curl; tou need to keep a steady temp and bring the humidity up a bit if you can; use a humidifier in the area for spurts at a time...... 30 min on then off for a bit; you will need to get a timer though.

As for the heat; you need to keep temps under 80; anything over 85 will make the plants transpire quicker.

 

[kp^]

thanks all for the tips!! Very much appreciated!

 

[romdog11]

it might be the strain cause i have some plants doing that exact thing and none of the other strains are showing the same thing.

 

[stinkyattic]

That's acute heat stress, plain and simple.
Romdog, the reason you'd get only a single plant in a room showing that has to do with 'hot spots' under the light rather than strain. Move your plants around, put the shortest ones under the hot spot, or raise your lights. You'll see the problem vanish, or be transferred to whatever plant is now under the hot spot if it's still too warm there.

 

[arjanz hays]

Second that. But there is also a low humidity prob. If you havent got a humidifier you could try putting some wet towels over a heat source. Be safe tho!
aH.
Your light is way too low for such a young plant man. Thats causing most of your probs. Could try putting wet towel over your hood (taking good care not to fry it of course!)

 

[romdog11]

That's acute heat stress, plain and simple.
Romdog, the reason you'd get only a single plant in a room showing that has to do with 'hot spots' under the light rather than strain. Move your plants around, put the shortest ones under the hot spot, or raise your lights. You'll see the problem vanish, or be transferred to whatever plant is now under the hot spot if it's still too warm there.

thank you for the tip stinky. im still a newbie grower. i have maybe 1 harvest under my belt and i suspect it was hemp :/ seriously you could smoke 3 bowls in a row and not even get a 10 minute buzz. this grow i have going on now are from seeds from seed banks not the greedy med co ops from around here. all your info is appreaciated. im going to pm you because i have a question you might have the answer to.