Hi there, I have just scrolled through your diary, buddy 12w of light is not enough for an autoflower, look into something around 100w led minimum, I'm sorry to say this but that plant is gonna be going into flower around Wk 4 and looking at the stem your going to have some trouble - sorry also with regards to tri-foliage plants I've had one, absolute pain in the backside to keep happy - watering amounts was a pain but she give me some really fruity purple buds, still in jars at the moment. Hope this helps 👍