Hello - first timer looking for some guidance - thanks in advance for any insight.
Strain: Blue Dream (Garden of Green) - started from seed
Method: Coco w/ perlite (70/30) and Dr Earth 4-4-4
Vessels: Plastic starter pots
PH of Water: typically water with 6.5
PPM/TDS or EC of nutrient solution NA
Indoor - 2’x4’ tent
Light system: Spider Farmer SF2000 set at 40% at 22" on 18/6
Temps; Day 74 Night 72
Humidity; Day 40 Night 42
Ventilation system; two 4" in-line fans, one exterior feeding, one interior extracting
Humidifier on low 24/7
I’ve got a pretty obvious lightening of leaves in one of my seedlings. This started 3 to 4 days ago. After some basic research I have two guesses that fit my set of variables: either the medium PH is too high, or I may have simply caused some discoloration by aiming my humidifier directly towards my plants.
I have been watering with dechlorinated tap water PHed to 6.5 up until may last watering. About 48 hours ago, I watered each plant with 2oz, PHed to 6.0.
I’ve quickly learned that there is a fine line with water and coco and moisture levels. There is the possibility that I let the medium dry too much. Could that possibly change the PH?
I also should mention that I drowned my first set of seeds so I am gun shy with the agua.
These pics are at 8 and 9 days from sprouting from the seeds.