How does one keep the nodal spacing tighter on the...

@Shakedown92 you are correct. Lowering the lights is a good way to control stretch. They farther the light the more stretch but also dont wanna be too close depends on how strong your light is. And for the other part I would recommend running good genetics from a trusted breeder. Do some research on which breeder is best in your region. You look to be doing good though keep up the good work. Goodluck 👍🏼

For me she looks ok its aquite young plant and she changes very fast... ATM i wont change the distance , she grows vigor and has nice leaves everywhere

If you want tighter spacing yes keeping your grow light the right distance is just one. Spectrum too more blue shorter spacing more red the more they stretch. And temps can play a role if you have significant lower night temps then days will also make her stretch. Keeping day and night the same in veg will get tighter spacing. I hope I can help u I'll be following your grow if you have more questions.

Yes, keeping the light closer will make the nodes really tight, but that can only be done if your lights give low heat, else you will give your plant heat stress. screw in led bulbs with the plastic cap removed work great for this. and you can keep them a few inches away. Also keeping the night and day temperatures close help in keeping the nodal space tight.