Is it flower time??....pics

its about 17 cm tall and there are 9 nodes
a couple bottom fan leaves burnt cause of nute burn, i had to flush
the first pic is before the nute burn and the other 2 are two days after nute burn
should i put them in 12/12 or should i wait, im not looking for alot of bud here, maybe
like a quarter, im going to clone this plant and put them in a 6site dwc bubbleponic system

flower if you want you can flower from seedling if you want

You should wait because they need a longer recovery time from the recent issues. Right now they are still in shock from the burn and if you throw them into flower they will shock again possibly causing more issues. It is best to do one thing at a time to the girls with a week in between so you can see how they respond. Luck