I tried posting my own thread, but it didnt work, so I'll try here....
My grow is about 6 weeks in, purple kush.. this is the second time this has happened. last time i just let it go because it started with only about a week left, but by the time I took it down, there were a few dead plants...
Room conditions are as follows:
1000W HPS Lights
Temp was at 78F Day 75F Night, i've changed it last week to 82F Day 78F Night as I think it was too cold for Kush at 78f Day...
Soil PH is currently around 6.5 as per the meter.
I feed every 5 days or so, food always under 1000ppm. Warm water.
I do have some bugs in the room, have sprayed with Azamax a few times with the lights off.
Humidity is at 55%
Here are the pics. As you can see the whole room is affected. Leaves are going yellow, then brown, then dying... Is this N deficiency? Nute burn? Overwater? I'm not sure...