Can someone tell me what's wrong with my girl?
I've never had this issue before, it starts with the youngest leaves and then continues to the older ones.
pH and EC values are actually okay, lighting too.
first photo reminds potash deficiency ( add more bloom fertiliser ). second could be even first sign of overdose of nitrogen, but colour very good, just spacing huge. more feeding, air movement and stronger light was needed to have better result i guess....