ak-47 auto

I have this auto AK-47, this my first grow, the humidity was low below 40 the first 2 weeks, my fault. She’s super short 2 inches, going a third set of leaves. Using a viparspectra p1500 at 18 inches away. I see new growth everyday, but I know she’s super short and small. Using 2-1 FFHF mixed...