Canceling the cycle, probably no. I would, however, be wary of anything over a 5 hour photoperiod. If you have no plants using the nutrients, all you will grow is algae. Don't need light to cycle, though. I would get your driftwood set up the way you like and just leave the lights off until you get your plants in.
Yeah that sounds good. I had the light on a reduced photo period anyway as I was acclimating the plant, but yes from now on 5 hours only Tyvm!