Actinic Lights - A fluorescent light that emits blue light (the color of the ocean water below 10 meters) which is beneficial to marine life.
Activated Carbon - Used in the aquarium filter to remove impurities from the water and keep it clear.
Actinic Lights: A type of florescent lighting with a high blue spectrum. It's the primary color of light in the ocean below 30 feet, required by corals and most reef creatures containing photosynthetic algae.
Actinic Lights - A florescent lighting system which emits a blue spectrum which is required by corals and most reef creatures which contain photosynthetic algae. Click here to read our lighting guide.
actinic lights Actinics are a type of fluorescent light that is very blue. This is the color of light that is most useful to the chlorophyll in marine life, and is the color of the sea below 10 meters.
For instance, actinic lights began in the salt water realm, but are seeing increased use in fresh water systems. However, actinic bulbs can lead to algae outbreaks.
While tanks with live rock can get by with regular flourescent full spectrum lights they will do better with flourescents and actinic lights (blue light). It really depends on how well you want the coralline algae to grow.
 See also: Actinic, Live Rock, Aquarium, Rock, Fish
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