Help! Leaves curling on sides... Pics

[smokerjoe70]

Hopefully somebody can shed some light!

HYDROPONICS/Aero Ponics

How long has this problem been going on? ........ 1 week
What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...)........aero
What STRAIN are you growing?........blueberry/apolly11
What was the establishing technique? (Were the seed or clone?)........clone
What is the age of your plants?........11 weeks (8 were clone/veg, 21 days into flower)
How tall are the plants? ........2'
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in?........ flower
What Technique are you using?........ scrog with aero table
What substrate/medium are you using?(Hydroton, RockWool etc.)........ hydroton
What is the Water temperature?........ 72
What color are your roots? White? Brown? Are your roots slimy?........ white no slime
What Nutrient's are you using? How much of each if using multiple?........im using highgrades formula for flower. I also use 5ml/gal of cal-mag and 4ml/gal peroxide
What is the TDS/EC/PPM you are using?
What is the pH of the "Tank"?........ ph is between 5.0-6.1 i have and it will drift that much and I use RO as well!
Are you sure your calibration is correct on your equiptment?........ calibrate it every 2 weeks
When was your last watering?........ waters 30 every 1 hour
What is your water temps?........ 72
When was your last feeding change? (ie. grow-bloom-micro-additional)........ i change once a week
How often do you clean your system: example: Flush out water replace with clean water and nutrients? ........every 7 days
What size bulb are you using? ........600w hortilux
What is the distance to the canopy?........ 20"
What is your RH Factor(Relative Humidity)? ........52%
What is the canopy temperature?........ 72-79
What is the Day/Night Temp? (Include flucutaion range)........65-70
What is the current Air Flow? (cfm etc.)........ 449cfm
Is the fan blowing directly at plants?........ airking 24hrs/day
Is your water HARD or SOFT? ........Soft
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? ........RO
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

 

[HeadyPete]

Light is too close. That is heat stress.

Your thermometer only tells part of the story. Radiant heat from the bulb builds up in leaf surfaces and causes curl and burning and the thermometer doesn't record this.

It's kind of like when you feel the heat of the sun through a window even though the window is cool to the touch.

Nice photoshopping, btw. It really heps us help you!

 

[smokerjoe70]

I had a feeling the light was the culprit ! I am maxed out on hight maybe I can go another inch or 2 max... hopefully that will fix it! Thanks for he advice Pete.

 

[word]

It's kind of like when you feel the heat of the sun through a window even though the window is cool to the touch.

Nice photoshopping, btw. It really heps us help you!

Nice analogy-HeadyP

Great report- SmokerJ - Aero is a touchy biatch, and i agree w/ HeadyP that though temps seem perfect the light might be a tad too close. If you place your hand on top of canopy you shouldn't feel a burn or heating.

 

[HeadyPete]

Do you have a good fan blowing on the plants? This can help cool leaf surfaces.

Is this happening all around or directly under the light? There are hot spots beneath bulbs that are the most intense area of light. The better hoods help disperse this more evenly, but there will still be a hot spot.

You can tie down the highest branches to get them away from the light, if necessary. Do this when they need watering, the plant is most pliable then and you have less chance of breaking a branch. If you break one, splint it back up with tape or gauze or whatever, and as long as that wound is closed (and not straight through), it will heal and be good as new.

Thanks word.

 

[smokerjoe70]

I have a 12" Air King, oscillating fan that runs 24/7 and it hits every square inch of canopy. I can try tying it down... check out my pics and let me know if you think i should tie it down...

Any Idea on ho much i will yield?? anybody? Pictures were taken today, 24 days into flower. This is an 8 week strain of blueberry/apollo11.

Its my second grow. I used this system before but the plants got all jacked up because i transplanted them from soil to aero 2 weeks into grow!!

here is a pic of my first grow

 

[smokerjoe70]

also... how long until they stop stretching!!!

 

[GET MO]

I GOT LEAF CURL ON MY PLANTS TOO, FROM WUT MOST PEOPLE ARE SAYIN ITS FROM THE LIGHT BEIN TOO HOT ON UM,YOU CAN CHECK IT OUT---GET MO MANDALA #1 AND HASHBERRY GROW..---MINE ARE IN THE VEGETIVE STAGE THOUGH...

 

[HeadyPete]

They should have stopped by now.

Very nice setup btw.