Indoor tent - 6 strains sat/ind - 1200w :D

hello hello , well today im introducing my first indoor . Im from Chile and its going to be summer soon. but the temperature its not my problem yet.

I started germination phase on september 8 and started with the following seeds:
3 x Sensi seeds .Early skunk
3 x Dutch Passion. Strawberry Cough
3 x Humboldy- Chemdawg
3 x Royal queen seeds - Amnezia Haze
3 x Royal queen seeds - Presidential O.G
3 x Royal queen seeds - Royal cheese
And Light Mix soil from biobizz.

I have a 240x120x200 cms tent
2x 600w HPS with Super lumen (660w)
1x air extraction 150mm

I transplanted the seedlings on sept 15 so they have now 8 days in 11liters planters.
I have some pics were i separated ind and sat dominant.
well i helped my babies with top crop underground and now ill be starting with bio grow and bio heaven.
I have some pics here and i wanted to ask u some questions guys because i dont really have an idea on what should i do.
first: should i use scrog or any technique? should i use topping, fim , lst? xd or should i just let them be?
the temp i have is 24 celcius, and 41%humid.

sorry for my bad english, its been a long time i dont speak or write in english !
i hope i explained myself in a clear way ill be around if u have an idea on how to imporve the prod of my indoor thank u very much for your patience-

peace

Topping, F.I.M., supercropping, and lst are all ways of increasing the amount of budsites. The choice of doing it is on the grower. I'm currently experimenting with topping and and not topping to see the difference. I've got three I topped twice. If you're gonna top, do it early. Just my advice.

Thanks Joe, but when should be the right moment for topping? are mine ok to do it? or should i let them grow a bit more?

IMO it's a little to early for you to top. The first time I topped, I counted three nodes up from the first true leaf and then topped. On my second group though, I topped after the first set of five finger leaves. The second set seemed to recover and begin growing again faster then the first group. I've read it's good to wait till you have some undergrowth before you top and once she puts out a five finger leaf, there should be noticeable undergrowth which means it's a good time to top.

Perfect, ill be uploading pics soon when i do it

thank u very much.. and now again, how should i organize my scrog with 9 plants in 1,44m2? any pic there? thanks again DD