Quote Originally Posted by kevin10
thanks mate...it took me days to join this web site aswell...i knew their there'd be poeple putting me down....anyway ive chaged to 18/6 now .gonna keep it like that for a few weeks then go 12/12...i'll keep you posted....do you think the plants will get stressed out by the light change
Changing light cycles isn't a stress free operation. Even putting the plant into flowering stresses them a little, since the plant has to adjust its internal properties to start the process of creating Chlorophyll B for budding. If you correctly change these cycles, however, you can prevent adding stress. You just need to keep the "sunrise" the same and adjust the "sunset" instead.

If you're worried about forcing hermies, as long as there are no other stressors (light leaks, cold temps, unstable ph, etc. etc.)this should not happen. Just keep an eye on things and you should be fine. :thumbsup: