you'll have to provide some info about what its growing in, watering habits,what you've added, temps, humidity, light source,
ph.
for now remove those ill leaves
here is the full scoop on my grow:
4x4x6 grow space indoors
2x 300w LED
1x 600w LED
lots of fans
temp is in the 70's
humidity bounces around based on when I watered, most always below 60%, usually in the 40's. I use a mini dehumidifier when I need to.
Black Gold Organic Soil. Some plants in 3gal some in 5gal.
1x Alien OG
1x Super Lemon Haze
4x Tahoe OG (for fun I tried diff pot sizes here, only two of these are sizable and the other 2 might give me an eighth each)
1x El Chapo
1x Purple Urkle
Today is week 5 day 2 since flip
Watering with fox farm big bloom, regular dose about every third day now. Calmag a few times.
I vegged for 7-8 weeks, all from seed that I found in nugs at my work. During that time I never fed twice in one week, took them a long time to need water.
This is I think the purple urkle and is the only plant that appears this sad.