Well if they stretched out for the sun, putting them under floros isnt going to do a thing but accelerate the condition.

I dont think the new leaves are too yellow. Many new leaf sets are lighter in color.

Sativas almost always are more stretchy.

I would put it back out in the sun quickly.

Good Luck.
HARDDON Reviewed by HARDDON on . yellow leaves on seedlings need help hi everyone i am a new grower and would like some advice. i have 10 feminised easy sativa seedlings. i sprouted them and used the sun to start them growing, they stretched out for the sun so i put them under 4x 18 watts cool white florescent lights (65.1 lumens/watt). i have noticed for a week or more that they have not grwon much and that the new leaves on top some have turned yellow. i would like your adive on what is causing the slow growth and yellowing leaves. i am in an asian country Rating: 5