Light Schedule for Clones

What do you all use for a light schedule for new cuttings/clones?
18/6 for the first couple of weeks or is 12 hours long enough for the first couple of weeks? These would just be under a florescent with two tubes.

Thanks!
PM

I just got some clones myself. Keep them under the 18/6 lighting cycle for the first month or so then whenever your ready to flower , which will take about 8 weeks change to the 12/12 lighting cycle.

These are going to be clones that will go to the vegetative stage once rooted. I usually run my lights for 24/0 in veg stage but I didn't think new cuttings needed that much light.
Maybe I'll go 18/6 until they're rooted and then goto 24/0 for vegging and of course 12/12 for flowering.

Thanks!

yea well i ahd my clone son 24 hours a day, coz my mate wanted too, cnat tell him nuffin and they crisped up luckily some one knwos what there doing and i turned teh lights off and 4 hours alter there all perky