read all the stickys cant figure this leaf curl!!

[gbp4ln]

my leaves are turning into canoes!!


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? 87
What is the Day/Night Temp? (Include flucutaion range) 70-87
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

 

[Fluorobuds]

gbp whats up man, I can't access your pics because I think us new members have to have so many posts before we can, but I believe I heard the "canoes" are a result of high heat sometimes because my plants did the same thing one weekend when they got hot, around 84 degrees I believe is where I was, so that may be the issue. Hope that helps.

 

[guest1ab]

Your plants are too close to your lamps I think.

 

[gbp4ln]

most of the replies i got on the other forums are saying the same thing about it being a heat issue, i wonder why everywhere you read it says you can put foros like 1 inch away from the plant. maybe they are just assuming you already have a very efficient air circulation??

 

[gbp4ln]

http://i100.photobucket.com/albums/m32/gbp4ln/P2230225.jpg

 

[guest1ab]

yeah.. 1 inch is pushing it, even with good circulation.

 

[Hydro-Soil]

Pull the lights back to at least 4" for now. When you're flowering you'll want them at least 6" from any part of the plant that has leaves or buds.


Looking healthy and in a couple of days they'll look even better.

 

[st0ne]

I believe everyone's response is correct. When the edges of the leaves curl upwards it means that the plant is trying to respire more water than possible.

I would raise the lights a bit and def lower your temperature to around 75.