1st Grow: NEED HELP!

Right now i have my plants on a light cycle of 18/6 and their sprouting, but at what point do i switch the light to 12/12? anyone have advice on watering? how much? how often? And does anyone have advice on miracle grow or other nutrients to enhance plant growth?

I appreciate the help, thx

~Stay Up :rasta:

AcOuSTiCStOneR420

NO miricale grow !!!!!!!!!!! baaaaaaad stuff for this kind of plant. You can flower from 5 sets of leaves on up. Shultz catus plant food is better if you don't go for like GH 3 part.