I have a 300w mars hydro light it’s my first time . I had the light at about 13 inches I have now moved it to 22 inches it seems to have stopped growing.
I'm running a off brand runs about 220true watt. I have mine about 12 inches seems fine. That may be a nutrition defecincy. The bleaching would occur on the new growth I believe much faster. Don't quote me but I'd think that older leaves would be used to light and take more stress Sent from my Moto E (4) using Grasscity Forum mobile app
It has a previous shock by the look of it, do not worry top looks great , remove those dead leaves and you will have a good looking plant.
You need to Post pictures in natural light More information about soil/medium More information about fertilizer used. Tap water or RO Water pH Soil pH.