@DasBoof . I found out that my soil pH was around 5. Just I corrected it and gave her an early feed of Bio bloom (3ml / L) and Top max (1ml/ L).
@KushGANG. I have both intake and 4" extraction fan with filter, two clip fans blowing around the plant. Temp: 24-25C, RH 40%-60%. Like I said to
@DasBoof, it might have been a pH problem since it was really low (5).
Let me know what you guys think...