after viewing 100 pics, cant figure this leaf curl-plz help

jdubg23

Active Member
ive read all the faqs, all the stickys, looked at all the pics.... i havent seen this anywhere. leaves are curling up at the edges-lengthwise. color seems to be ok, fairly uniform green. they are 12 days old, i water about every 2-3 days, when 2 knuckles deep is dry. been on 1/4 strength nutes since 1 week old. in promix with runoff water ph around 6.5 they get 1/4 strength epsom salts with the feedings. they are still growing vigorously.... what the heck is going on??
 

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past times

Well-Known Member
i think they're doing fine. maybe back off the nutes a bit. they really dont need much in the first few weeks.
 

jdubg23

Active Member
temps never really get above 83, 40-60% humidity....


HYDROPONICS/Aero Ponics/Coco/Soiless/

How long has this problem been going on? 5 DAYS I THINK
Are you growing in a PVC grow tent? NO
What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...) PROMIX, HAND WATER
What STRAIN are you growing? G13 POWER SKUNK
What was the establishing technique? (Were the seed or clone?) SEED
What is the age of your plants? 12 DAYS
How long have they been in there mixture they are in now?(coco,soiless etc..) SINCE GERM
How tall are the plants? 4"
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in? JUST STARTED VEG
What Technique are you using? STILL SEXING THE PLANTS, THEN LST
What substrate/medium are you using?(Hydroton, RockWool etc.) PROMIX
What is the Water temperature? TAP
What color are your roots? White? Brown? Are your roots slimy? WHITE
What Nutrient's are you using?(If growing soiless) GENERIC STUFF FROM HYDRO STORE, SOLD BY POUND, POWDERED-VEG FORMULA 20-6-16
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful* 1/4 STRENGTH RECOMMENDED
How often are you feeding? (If using soiless) AROUND EVERY 3 DAYS
How often are you giving nutrients? (If using soiless) BETWEEN 1 OR 2 TIMES OUT OF 3 WATERINGS
If flowering, when did you switch over to using Bloom nutrients? N/A
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect) VEG NUTES THEN EPSOM SALTS
What is the TDS/EC/PPM you are using? N/A
What is the pH of the "Tank"? N/A
Are you sure your calibration is correct on your equiptment? YES
When was your last watering? LAST NITE
What is your water temps? N/A
When was your last feeding change? (ie. grow-bloom-micro-additional) N/A
How often do you clean your system: example: Flush out water replace with clean water and nutrients? N/A
What size bulb are you using? 8 X 23W CFLS FOR VEG
What is the distance to the canopy? 1-2 INCHES
What is your RH Factor(Relative Humidity)? 40-60
What is the canopy temperature? 83
What is the Day/Night Temp? (Include flucutaion range) 70-85
What is the current Air Flow? (cfm etc.) COMPUTER FAN EXHAUST
Tell us about your ventilation, intake exhaust and when its running and not running? 6 INCH FAN BLOWING CANOPY, COMPUTER FAN FOR EXHAUST. BOTH FANS ARE OFF DURING 6 HOUR DARK PERIOD
Is the fan blowing directly at plants? YES
Is your water HARD or SOFT? HARD
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? TAP
Are you using water from a water softener? NO
Has plant been recently pruned, cloned off of or pinched NO
Have any pest chemicals been used? If so, What and When? NO
Are plant's infected with pest's NO
 

spiked1

Well-Known Member
That is not a lot of airflow, and I would leave the fans on all the time.
And why are you using epson salts, you wouldn't need it this early even if you were using RO water, and you shouldn't really need it at all if your using tap water.
Anyway, as I said canoing shape of leaves is heat, the plants attempt to conserve moisture, and it's too early to be using those nutes.
Maybe your lights are just a little too close
Keep your fans on 24/7
Stop nutes until week 3 and then 1/4 strength
Good Luck.
 

Phelps

Well-Known Member
83 is about 8 degrees too hot, which would make me agree with heat stress. U never, ever want ur indoor temps above 79, 75 is ideal. I see atleast ten people per day with pics like urs and they all argue that their temps are in the low 80's. Lower ur temps and watch ur plants come back to life.
 

M1Gunner

Active Member
What kind of light are you use'n?....I had a weaker plant that was doing the same thing and it was from my 600watt MH conv bulb being to intence for him, there was no heat prob just to much light.

When the prob first stated if looked like that at the end it was so bad the plant tuned its fan leaves side ways.....I pulled the light back and the prob was gone in one day....
 

eza82

Well-Known Member
I had same... awhile back caused as much confussion..... it was heat stress and did not effect the plant much just a few leaveshere and there....
More air flow and reduce your temps.....
 

jdubg23

Active Member
one of my plants seems to be drooping more, the other one is still the same.. im having trouble keeping my temps below 85. heres some more info and a fresh pic. seems like the tip of the one of the very bottom leaves is starting to yellow
?



HYDROPONICS/Aero Ponics/Coco/Soiless/

How long has this problem been going on? 5 DAYS I THINK
Are you growing in a PVC grow tent? NO
What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...) PROMIX, HAND WATER
What STRAIN are you growing? G13 POWER SKUNK
What was the establishing technique? (Were the seed or clone?) SEED
What is the age of your plants? 12 DAYS
How long have they been in there mixture they are in now?(coco,soiless etc..) SINCE GERM
How tall are the plants? 4"
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in? JUST STARTED VEG
What Technique are you using? STILL SEXING THE PLANTS, THEN LST
What substrate/medium are you using?(Hydroton, RockWool etc.) PROMIX
What is the Water temperature? TAP
What color are your roots? White? Brown? Are your roots slimy? WHITE
What Nutrient's are you using?(If growing soiless) GENERIC STUFF FROM HYDRO STORE, SOLD BY POUND, POWDERED-VEG FORMULA 20-6-16
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful* 1/4 STRENGTH RECOMMENDED
How often are you feeding? (If using soiless) AROUND EVERY 3 DAYS
How often are you giving nutrients? (If using soiless) BETWEEN 1 OR 2 TIMES OUT OF 3 WATERINGS
If flowering, when did you switch over to using Bloom nutrients? N/A
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect) VEG NUTES THEN EPSOM SALTS
What is the TDS/EC/PPM you are using? N/A
What is the pH of the "Tank"? N/A
Are you sure your calibration is correct on your equiptment? YES
When was your last watering? LAST NITE
What is your water temps? N/A
When was your last feeding change? (ie. grow-bloom-micro-additional) N/A
How often do you clean your system: example: Flush out water replace with clean water and nutrients? N/A
What size bulb are you using? 8 X 23W CFLS FOR VEG
What is the distance to the canopy? 1-2 INCHES
What is your RH Factor(Relative Humidity)? 40-60
What is the canopy temperature? 83
What is the Day/Night Temp? (Include flucutaion range) 70-85
What is the current Air Flow? (cfm etc.) COMPUTER FAN EXHAUST
Tell us about your ventilation, intake exhaust and when its running and not running? 6 INCH FAN BLOWING CANOPY, COMPUTER FAN FOR EXHAUST. BOTH FANS ARE OFF DURING 6 HOUR DARK PERIOD
Is the fan blowing directly at plants? YES
Is your water HARD or SOFT? HARD
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? TAP
Are you using water from a water softener? NO
Has plant been recently pruned, cloned off of or pinched NO
Have any pest chemicals been used? If so, What and When? NO
Are plant's infected with pest's NO
 

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tyke1973

Well-Known Member
Sounds either like heat stress,or fans are too high on the plants this can cause leave tips to fold upwords canoeing.
 
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