Lighting question..help please

[LilNemo]

I have the Coralife Lunar Aqualight Quad T5 HO Aquarium Light Fixture for my30g tank. I've noticed when all the lights are on some of my coral respond better; such as the pagoda cup corals. I was told not to leave the actinic bulbs on all day. I'm just curious if my coral seem to respond better what is the harm? Any help would be appreciated.

 

[Reefing Madness]

Leave all your lights on, including Actinics, as most corals need this wavelength of light more than the white lighting most think they need.
Feature Article: Light in the Reef Aquaria ? Advanced Aquarist | Aquarist Magazine and Blog

 

[LilNemo]

Thanks very much, Reefing Madness! I was thinking leaving them all on would be correct due to just watching how they respond. However, you really don't know until you ask.