Hey welcome to the forum! Can you give us so more information about the plant so we can properly diagnose?
What strain is it?
Soil, Soilless or Hydro?
If soil/soilless, what is in your mix?
If soil/soilless, what size pot?
Size of grow space (LxWxH)?
Make and model of grow light?
Temperature in the environment?
Humidity in the environment?
PH of medium or reservoir?
PPM of medium or reservoir?
How often are you watering?
Type and strength of nutrients used?
Strain is Jack harer
Cocos soil in 9L Air pot
9 plants in 1.20×1.20 cm
Lamps lometak 200w and greenception led 4 lamps
Ph is 6.2
I use biobizz nutrient and I watering the 4 times in the week 1.5 letter each plant
Looking forward to your nice answer
What is the PPM of the soil runoff?
I actually don't know since my measure is defect
@Raghid Rmieh Oh ok. It's really hard to tell you for sure then. You may be underfeeding or you may be overfeeding and be locked out.