Auto flower leaf problem

This is my second grow which is lemon haze, all my plants are fine except this one, some of the leaves on top and bottom are going brown and crispy and I’m not sure why I’ve taken the best pictures I can
Info
Growing in 8litre pots under 2 600w LED
Feeding 1ml top max and 1ml bloom per litre every 2 days
Growing in biobizz light mix
Temperature stays between 25 and 29 degrees
Humidity is at 43%
Lights are about 12 inches above

I forgot to add that this plant is 6 weeks old from germination