Quote Originally Posted by Luv2Bowl
I see now with certainty, my (bag seeds) area a sativa strain. My box was designed for NL, .... AND this is my first time, and test batch .
Should I grow another week , and switch to 12/12? I want to be able to tell the sex of the plant. (seedlings are a little over 2 weeks old)

As a general "tell" the fastest growing, tallest and skinniest will be males.
But not always.
And, a longer veg. will yield greater returns.

Also if I have more than one question do I keep posting threads? Or put them in one post?

Make a bullet list of related questions.

But first, click on the link in my signature and do a search there.
Most of what you need is there.
Best archives on the net!
You will ask mo' betta questions and be better prepared to understand and implement any good advice that you receive.

Well, at this point I will have already exceeded the quota of one, so........do sativa nodes alternate?
There's no quota especially with related questions.

And yes, Sativa nodes begin to alternate when they are ready for flowering.
But so do Indica kine
If height will be an issue, top them or LST them.

Attempts to sex them too early can be frustrating, they take a long time and then will take more time to reveg.
And all that is stressful to seedlings.

I know the feeling of wanting to do "something".
But this early, it is not advised.

Aloha,
Weezard