I have 7 Fem White Widows and 2 Fem Auto Flower Little Angels that are 3 weeks old from sprout. They are only a few inches tall and are just now having the 3rd set of leaves pop out of the middle, barely. This seems really slow because when I see other peoples pics of their plants @ 3 weeks there are multiple leaves and they actually resemble plants, whereas mine still look like seedlings, almost.
I made a mistake and added a small dose of Canna A and B Nutes and Rhizotonic after the first week. I realized that was wrong and flushed the medium on 2 different days since then.
My medium is 50% canna coco 40% perlite 10% clay pellets.
I use distilled water and I water every other day or as needed.
My light is a 600w MH with a digital ballast. The light hangs 2-3 feet away from the babies. Light cycle is 18/6.
Oscillating Fan on 24/7.
Air circulation is better during the light cycle because I leave the closet door wide open. The door stays shut for dark cycle with no intake or exhaust, but temp stay room temp.
The plants are in little coco pots. I thought they might be root bound even though so small so I moved 4 WW's into half gallon containers, and they aren't doing much better than the other ones. So that rules out root boundingnosity.
Thanks for your help.