24 Day Old Girls

IMGP0234.jpgIMGP0195.jpgIMGP0238.jpgIMGP0193.jpgIMGP0233.jpgIMGP0200.jpg IMGP0239.jpgIMGP0237.jpgIMGP0240.jpgsorry bout pict. color...

Happy Halloween!!!

ive noticed a lot of info on leaves curling, Rust spots, but i was needing sum info on my plant,
  • 24 days old recirculating 20 hours on with one hour off four times a day.
  • supplemental sonic fogger in root res.
  • 150HPS/LED actinic lighting 16/8 timer 13" from lamp
  • res temp constant at 68 deg./grow box temp 69-78 deg
  • RH 39-55%
  • General Hydroponics-Lucas Formula
  • to date: TDS 589
  • pH 5.5-6.0
  • CO2-3 gallon/ sucrose, yeast /diffused through H2O. ppm. ???
my Question i need help with is;

General curling of the older fan leaves, curling down. new or smaller sets of leaves are fine. also small irregular spots , can see from underside of same inflicted leaves, on the same older curling leaves!!! they are coffee colored to yellow/brown. looks horrable close up. but the over all health of the plant seems at least good?
dark green leaves, thick central stalk,roots long,hairy offwhite. there is not rotting smells in res.
it reads like nutes are out of range , but the plant is only at the vegg dosing of TDS, 600ppm, could use sum more info on curling leaves?? specifically for older leaves at the dosage iam using???​
 

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BeaverHuntr

Well-Known Member
Rust spots is probably calcium/ magnesium deficiency. If you are using R/O water you may have to add some .. Look into it.
 
its RO water, make-up and top-off.
do ya think it could be over watering, recirculating system with sonic fogger.
20 hours split into 5 hour watering with an hour between.
RH @33-55%
 
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