Leafs yellowing sides

Fluffybuds1992

Active Member
Hello guys here is one of my autoflowers she is 20 days old. Any ideas why the leafs are yellowing on the sides and a little on the tip the led light is about 20 inches away the other three plants that i have are fine. The temp is beetween 25 c to 27 c and the rh is 55 i have been giving them plain water with a ph of 6.3 to 6.5
 

Attachments

Top