You will not know for many weeks. MJ only shows sex with its well within flowering. If its a auto it will show it on its own, if its not your plant has to be 12/12 lights for a few days to over a week before it will show you.
OK I don't want make another thread so just ask do you think it strong enought to switch from my T5 to my 250w Mh light?
Generally you don't have to use a T5 till you think its "Ready". The sun is only on one setting. Distance? As close as you want if you can vent the heat. You generally want the temps to be 75-80 no more then about 85 and take the temps at the top of the plant. Taking them at the bottom does no good. So if you can have it 3 inches from your plant top and keep the temps low then your good if not increase till you hit the area you want.