Rooted clones

if i start rooted clones in 12/12 how long b4 i can switch them to 18/6 or can i let veg in 12/12

you shouldn't be rooting clones in 12/12. If you did root some clones in 12/12 and want them to veg more, put them in 18/6 immediately.

no i rooted them at 20/4

I guess your question doesn't make much sense then, does it?

i was just asking because i had moved them and the light was on 1 day 12/12 that's why i asked but i got them at 20/4 now so there cool and thanks for being ignorant