New to this so any input welcome.
Yellow patches appeared on fan leaves on 2 of 3 plants - overnight. Concerned because it was so sudden. A couple of leaf pairs on each - differing heights
Plants: 3 x Lemon Haze photo clones
Status: 2 weeks in veg
Height: 10" tall each.
Growth Rate: 1" per day
Medium: Canna-soil Pro in 5 gallon pots
Nutes: Canna-vega 1:200 (every third water)
Water: pH 6.5 (thirsty girls, drink about 1.25 litre each a day with minimal run off
Lights: 18/6 600W HPS (I know MH is preferred - I was informed that timing was more critical). I can swap back to fluro if needed. Lights were at 20" from canopy - increased to 26"
Fans: Circulate, In/ out, carbon scrubber, negative pressure.
Day: 30 deg C/ 32% RH
Night: 20 deg C/ water spill in tent last night had humidity @ 94% before caught and vented.
All have been growing well and consistently - it is the speed of occurrence on 2 of 3 plants that has me worried!
I have not found a way of bettering my day temps (bat wing reflector, not cooled).
Hoping I haven’t missed something. I will add a couple more images soon.