Hi all, new to the forum, and first time grower, so any help would be undeserved, but enormously appreciated as I see a great deal of useful experience in here. I’m on day 52 from sprout, and my girl Gilda is displaying some extremely concerning signs. I can’t figure out if I’m experiencing a micro deficiency or macro excess or total lockout from wacky pH mismanagement, or a fun, interrelated combination of all the above… On her newer growth, in the last 7 days, she’s developed some nasty interveinal chlorosis and some yucky rust spots… I’ve attached some photos for you. Let me know if any additional info or better/more photos are needed.
Thanks so much in advance!
Strain: MSNL Critical Thunder Auto - from seed (Jiffy Mix/Jiffy pot germ -
trans to final media @ 10 days from sprout)
Method: FF Happy Frog - unamended (have added some FF Acid Loving Plants dry OMRI ferts as tea and topdressing @ 4 wks age - also Mikrobs, Roots Elementals Calmag, fulvic/humic acid and some Nature’s Nectar Nitrogen)
Vessels: 7 Gal Bloem Bags (100% recycled plastic bag)
Soil Slurry pH of 6.3 (5/1 distilled water/soil) - water pH has been terribly managed and wildly variable until now - currenty watering @ 6.3 - last runoff (w/ addition of mikrobs + fulvic/humic acid in 1 gal @ 5.8) was 7.0 @ 650 PPM
62x32x80 Mylar Tent (non climate-controlled basement - ambient 68-78F / 40-60% RH)
2x Sonlipo 2000 Full Spectrum LEDs (220 watt actual draw) - V -100% / B -100% @ 18" from canopy - Cycle = 24/0
( https://www.amazon.com/Sonlipo-Newest-Spectrum-Dimmable-Growing/dp/B07XJX9V7M )
Temps: Ambient - Day ~75-80F - Night ~72-78F // AC Infinity thermostat set @ 82 - speed 50% - tent temp usually stable to within +/- 1.5F
Humidity: Inkbird humidistat set @ 52-55% - connected to 1.2 gal ultrasonic humidifier
Ventilation system: 4" AC Infinity Digital PWM Fan - humidistat off - temp set to 82F - 4" flexi duct w/ (1) 180 degree u-shaped bend – 4" carbon filtered vent at bottom - 8" carbon filtered vent at bottom
Climate Control - No AC in tent or basement (yet) - small 1/2 pt dehumidifer in tent (never used) - 1.2 gal ultrasonic humidifier connected to Inkbird humidistat @ 52-55% RH