RQS Royal Haze No. 2

I was away for the past week, and as expected I had some issues with temperature since it*s getting colder where i live. Temperatures dipped to 16°C (60F) in the night and couldnt surpass 21°C (70F) during lights on. I can see some rusty spots on some of the leaves, but im hoping it will manage itself, since the environment is now back to normal. I also through some baby leaf salad into the growbox.