Quote Originally Posted by DreamerGirl7
I know that

Do you maybe know, when i put 12/12 , ho much do they grow in height => how many centimeters they grow in complete flowering
stage ? ?

Peace ! :stoned:
Your plants look good! :thumbsup:

The plants will double in size at least when you flower, maybe even triple. And since you'll want to keep the light at least 30cm away from your plant tops, that means you probably don't want you plants to be taller than 90-100cm (that's adding in 30cm for the pots you've got then planted in).

I'd say you should flower (switch to 12/12) when your plants are around 30cm high. If they get to be more than 45cm, they could outgrow your cabinet!