Triple G (RQS) | First Time Grower

(Day 63) Plant is still looking good and is being watered every morning. I hope she gains some weight these last few weeks. (Day 66) Weird spots have appeared on some leaves. Would be grateful if anybody is able to diagnose this [See last picture]. Otherwise she is doing fine. Temperatures outside have dropped significantly so I have turned up light intensity to keep daytime temps at around 25°C.