Best method to tell if it's a male or female: If it doesn't have any pods but has small little buds with longer hairs: it's female. Pods: male. You can usually tell the sex about two or three weeks in, if you use a microscope. If you have two grow rooms, you could take a clone from one of your base plants and flower it right away and see if it's a male or female, if you don't want to wait three weeks.

So, I suggest you get a microscope/ magnifying glass.


Edit: Yeah, veg is typically 18/6. Do this until the plants are a third of your desired height. After that, do 12/12, and it should shoot up the rest rather quickly.