curling leaves in flower top

[Cindiwaa]

How long has this problem been going on?maybe a week
What STRAIN are you growing? White Widow
What was the establishing technique? (seed or clone?)Clone
What is the age of your plants?Four weeks into flower
How long have they been in the soil mixture they are in now?two months
How Tall are the plants?about 5 feet
What PHASE (seedling, vegetative or flower) are the plants in?flower
What Technique are you using? (SOG, SCROG etc)natural
What size pots are you using? (Include how many subjects to pot)approx 3 gal air pots
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?)FF ocean with 6half gallon of Perlite, one cup worm caseing one cup rainbow mix grow What Nutrient's are you using? mollases every other water one tablespoon per gallon
How much of each nutrient are you usingcouple tablespoon rainbow mix flower in topsoil of container couple weeks after 12/12
with how much water? *Knowing the brand is very helpful*muni aged 24 hour
How often are you feeding? If flowering, when did you switch over to using Bloom nutrients? one week into flower hydro organinc Rainbow Mix Bloom
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect) veg in rainbox mix flower in rainbow mix bloom
What is the TDS/EC/PPM of your nutrients used?dont know
What is the pH of the "RUN-OFF"?6.5-6.75
What method of pH test was administered? Using Strips? pH pen?strips
How often are you watering?when there light to lift every couple 2-4 days

When was your last feeding and how often are you feeding? 2-3 weeks ago
What size bulb are you using? 600 HPS
What is the distance to the canopy?about a foot but the effected leaves are lower one
What is your RH Factor? (Relative Humidity)30-40
What is the canopy temperature? i dont know how to measure that
What is the Day/Night Temp? (Include fluctuation range)83 high 73 low
What is the current Air Flow? (cfm etc.) i dont know its a 4 in fan cooling the light and exhausting into attic
Tell us about your ventilation, intake exhaust and when its running and not running ?exhuast on light into attic 12/12
Is the fan blowing directly at plants? yes
Is the grow substrate constantly wet or moist?nope
Is your water HARD or SOFT? dont know
What water are you using? Reverse Osmosis (RO)? Tap? Bottled?tap Well water? Distilled? Mineral Water?municipal
Are you using water from a water softener?nope
Has plant been recently pruned, cloned or pinched?nope
Have any pest chemicals been used? If so what and when? neem month ago
Are plant's infected with pest's? few nats try to control with sticky paper and preditor things


Thanks again in advance for your help!
Peace
RTD

 

[dbfr3sh]

believe its from too much Nitrogen, they call it somethings horn. someone who knows better will chime in.

 

[dr-dank]

+ 1

"Rams Horn"

Too much N.

 

[mexilandrace]

you need to flush that soil with phed water, soon or you are going to lose it completely.

like they say way too much N

 

[Cindiwaa]

pHed at what? 6.0? for the flush. contanier size times what for flush?

 

[hazy]

Yep, that claw is from too much N. Don't freak, they won't die even if you don't flush. I'd flush though, and you should notice new growth flattened out.
Some strains do it bad while others won't at all with the same nutes.

 

[Cindiwaa]

flushed till the water ran clean, took 4-5 gals. I hope this will stop the streching and Rams Horn .I wold like to see her fatten up now. So with approx one month to go and a fresh flush should I avoid all nute from here on out?
Thanks,
RTD

 

[montehierba]

set your ph at 5.8 and flush it will block the nitrogen so the plant won't be able to reach it but yes delivering all the p-k it needs.
sativas don't like nitrogen that much,

 

[mexilandrace]

no you likely don't have any nutes left, or very few.

next watering give a very light feeding, see how it responds.

 

[hazy]

Only bloom nutes from here on. Keeping the N down. If you didn't, they might show deficiency signs.

 

[PetFlora]

RE: Rams Horn

RE: Rams Horn

Yep, I got it too. Been searching for answers.

I am doing aero with bubblers/fog/ spraybar misting of roots.

I was adding 3 parts bloom and 1 part grow. Guess the grow (or that much grow) was the problem

Been flushing 2 days will replace nutes now with bloom only

Thanks for the photo!

 

[rocksteady]

tak