changing light cycle

ok, i have had a few mothers growing since last october and a few freshly rooted clones under the same light...i have had them on 24hr lighting the whole time.. my question is if i change the light cycle to say 18-6 will that screw up everything...thnks for any info..

No. I've had my moms under 18/6 for over 1 1/2 years. Clones are done under 18/6 also.

Wet