PurpleThai
Member
Hello growers, what do you think this is?
Some leaves are yellowing or have burnt tips, but not all the plants are showing this problem...
Temps are 77°F during day, 64 during night, RH 40%.
20 hours light cycle.
I have a spider farmer sf2000 (200w) and a spider farmer sf1000 (100w) both on full power, plus two 25w purple lights, 20 inches distance from plants.
Last time I watered, my nutrient solution had 1000ppm, maybe it's too much for autos, but it's my first time and I have to gain experience.
Here some pics:
Some leaves are yellowing or have burnt tips, but not all the plants are showing this problem...
Temps are 77°F during day, 64 during night, RH 40%.
20 hours light cycle.
I have a spider farmer sf2000 (200w) and a spider farmer sf1000 (100w) both on full power, plus two 25w purple lights, 20 inches distance from plants.
Last time I watered, my nutrient solution had 1000ppm, maybe it's too much for autos, but it's my first time and I have to gain experience.
Here some pics: