Change in Lighting Cycle

I decided to reduce the amount of time my lights are on. I noticed my corals colored up when I replacing some higher PAR bulbs with actinics. I figured I'd reduce the amount of time the lights ae on and observe the results.

Before
Actinics: On 9:30 am, Off 11:00 pm, Total 13.5 hours
Rest: On 10:00 am, Off 9:30 pm, Total 11.5 hours

Now
Actinics: On 10:00 am, Off 11:00 pm, Total 13 hours
Rest: On 11:30 am, Off 9:30 pm, Total 10 hours