here are some more details about it:
I grow it in a 10 liter pot under a 250w HPS and veged it with Scotts-Peters professional 20-20-20, now just switched into 10-30-20 for flowering.
The pot soil's brand might not be recognized by all of you cuz I'm growing in China...lol
The reason I veged it for about 7 weeks is because of the lamp was self-wired and not in a good condition, so when I left my apartment for work in the morning, I had to turn it off in case of getting a fire, and unfortunately the natural lighting of my room is kinda dim, so the plant could only get 12 hours strong straight light while it was veging.
I pinched it several times to make the stem stronger.
Those are pretty much every thing about it.