Actinic

[jimfocke]

Please tell me what this means.. I don't seem to find the answer I'm looking for.. When it comes to lighting.. I'm ignorant..Thanks..

[Slappy*McFish]

Actinic lamps produce light with a very heavy concentration in the blue wavelengths. This makes the light especially good for corals, anemones and other invertebrates, as well as some beneficial marine algae.

[tricksterpup]

Actinic bulbs provide their spectrum in the range required for the the Photosynthetic process and health of Marine corals and Invertebrates and to a lesser extent freshwater plants. Actinic bulbs should not be used alone , but in conjunction with other full spectrum bulbs. Actinic bulbs are heavy in the blue light and can give everything a bluish tint.
Pulled it from this site..
http://www.badmanstropicalfish.com/basics/basics_lighting.html

jim