Ordered 21 feminized seeds of strawberry kush, blueberry, and Pineapple Express. Germinated fine in windowsill, but as soon as transplanted into grow room began to show signs of stress and stopped developing. Older leaves yellow and die while younger leaves struggle to grow. Older leaves die at the same rate the new leaves grow so the result is seedlings that haven’t grown in over a month, but also won’t die. 2 seedlings somehow developed real leaves and took off but the rest are in the same state. No nutrients were added to soil, watered daily once soil is dry one inch deep, and I occasionally spray with an NSAID solution to counter inflammation. Light is a 1000 watt equivalent LED which generates enough heat to push the grow tent above 80 degrees regularly. This elevated temp is the only thing I can think of that could be causing the issue. Any thoughts?
strain: indica/hybrid feminized
How many plants: 21
Age from Sprout: 5 weeks
Soil in pots: 25% pearlite, 75% nutrient free miracle grow potting soil. Hand mixed
-lightly watered daily once soil is dry one inch down.
PH of runoff solution is 7.2
No nutrients used
Indoor or Outdoor: indoor
Indoor type and size of grow area or tent: 10x8x6 Mylar siding
Light system, size and height from plants: two 500 true watt led full spectrum 25 inches from plants
Temps; Day, Night: day: 80 degrees, night:60 degrees (Fahrenheit)
Humidity; Day, Night: humidity generally at 45%
Ventilation system; Yes, No, Size: one in line duct fan
AC, Humidifier, De-humidifier: none