If you want a bush its very simple, clip off the top node of the plant, which is first inch or so of the plant when its 3 weeks old after seed. Then transplant, and veg for a few weeks and you will have 2-4 main colas and a nice bush. When they are about 10-12 inch tall they should be showing sex, then flower the females as soon as they show the first sign of sex. Make sure you give them lots of light and lots of air and a living organic environment. goodluck