Found the sickness form !

Indoor grow, wooden cabinet 2x2ft at floor/ceiling and 3ft walls.
Soil (potting compost, prenuted)
UK soil from B&Q
Soil pH 7 or 8 not sure about this meter.
Tap water (London)pH is 7 or 8 unsure of meter.
Plant is 22 days old
No nutes yet.
250w plug and grow 2700k CFL, on 18/6 schedule, 8 inches from canopy.
Day temps are 27/28c, night temps are 21/22c
Day humidity is ~30, night humidity is ~40.
Light schedule is 18/6 all the way
I have 2 120mm extractor fans and one 120mm intake fan and one fan blowing on the plants.
No pH correction has been done.


Thanks,

nis.