Purple and Cheese Autos

It started off looking like a good week and then things turned and I was having major issues starting to show near the end of the week!! I could tell that lowering the PPM was a good thing and was showing some signs of improvement. Things were not as crispy and I was keeping up with the Nute, Water, Water feed with lowered PPM to around 840 on the Nute feeding days. They were drinking lots this week every other day I was watering/feeding. But near the end of the week things started to turn for the worse. The Purple Kush fan leaves were starting to turn yellow and the Cheese was starting to get crispy again. Pretty much all smells were gone at this point and the plants were just not looking alive and healthy. I was removing lots of burnt/crisp fan leaves cause they were not looking good. I decided at this point to raise my lights as high as they could go and hope that my issues were caused by the lights being to close.