kpogue has the right idea in my opinion.
A cycling tank is not the same as and established tank.
It's not even like a tank that has just recently finished cycling.
During the cycle - most everything good that is alive is in a fragile delicate state, having to live under some pretty crummy conditions - coralline algae included.
I never fully light a cycling tank for the duration I do a mature tank. Just isn't necessary - and as mentioned - may allow some nasty stuff to get a good foothold.
I keep it dark for the most part - not wanting any photosynthesizing plants or animals to kick it into high gear - good or bad. Let them all get through the nasty time period in a more dormant state ..... alive but not jamm'n on all eight cylinders yet. Time for that later.
I hardly light my cycling tanks at all - and choose to just fire up the lights to take a look at what's happening - then shut'er down.
Once the tank's cycled - and everything has settled down - up come the lights - a little each day.
That's what I do - but we're not saying that's what should be done.
I've never noticed a die off of coralline algae on my live rock through the dark cycle.
Disclaimer time

right kpogue !