It's 17 days since the germination.I found some brown burn spot on leaves of critical xxl auto. Ph level is controlled. 18 hr light on and 6hr off. Humidity around 65%. Temperature is 77°F .How can i fix this?
Add the next week to your diary - tell us what you've been doing... we're missing critical information here - are you feeding? What's the pH that you say is "controlled"? Absent information, I'd agree with Organoman and tell you to stop watering the leaves...