Whats wrong with her leaves? Is this light burn?

[MittenMan]

Any help would be great. In week 5, rh about 60, temp at 80, 18x6 light schedule.

 

[Xbox1]

Your plants look healthy from the images. Possibly a little nitrogen toxicity. Water for the next few feeds. Measure ppm out when watering. Or do a soil slurry test

 

[Waira]

N-toxicity for sure,... switch to bloom nutes now, it's time plus lower N content...