dumb light questions

Looks as if the thread is going technical anyway Danny. This may help as to what I was speaking of;

Aqua Blue+
A special 60:40 combination of 6000K and 22000K (approx) phosphor blend.
It is specifically designed for reef aquariums mimicking sea water to a depth of one to twenty meters. It can be used for growing SPS corals up to 80cm in the aquarium.
Actinic+
A special 60:40 combination of deep blue and actinic wavelengths.
It is specifically designed for marine aquariums mimicking deeper water and is recommended to be used with Aquablue Plus tubes.
Suitable for salt water. A mixture of 40% Actinic and 60% Blue, it emits levels of actinic as well as a blue spectrum. It will make even the drabbest corals stand out by producing levels of fluorescence