you can also leave your atinics on during the cycle. what works for me when i cycle a tank, i tend to leave my lights on & set my timers. these things are a living organism & you could say it has some form of memory, where it gets use to a certain lighting period. in turn, anything in it, will know when to wake up & go to sleep. maintaining that routine, will promote good health within all living organisms in it, from bacteria & algae to fish & coral. i actually like my tank to get extremely ugly. in my case its a sign of bacteria blooming & good growth of algae. giving me a good idea of what kind of cleaning crew i will be needing, like star fish, hermits, snails, crabs, urchins, shrimps, so on. which i find it fun to buy & watching them go to work. hope this helps. so, good luck & happy reefing.