Help I Nead Someboby

Hello all
Can anyone tell me ive just been given some w.w.plants that have been on 24/7 for 2 weeks.What i want to no is will it be ok for me to turn the light to 18/6 now. thay have just spent 2hrs without light getin them to my place.Thanks for lookin in and any help you can give me

Sure go for it.

They'll be fine. You havent even flowered them yet.

I know ive not flowered them yet, as this only my 2nd grow i did not no that it was ok to fook a round with light times like the way i want to. I mean i no you carnt in 12/12.
as thay are 20 days old when can thay be toped??,Can i get some help with that, thanks all.

They can be topped right now. As long as they have 5 + leaves i would say. Keep em under 24/0. I find it works better.

No question 24/0 will blow them up alot faster than 18/6

but 24/o will make it longer to flower not much but 18/6 plants react alot faster when you put them on the 12/12 but you can chang fromw 24/0 to 18/6 when ever you want the plants will probly like the break from th light it when its they make the most food for them self