HPD Turbo
New member
<a href=showthread.php?s=&postid=10128785#post10128785 target=_blank>Originally posted</a> by pmartin727
This site might help http://www.marineland.com/science/articles/31Lighting.asp
Actinic lights provide a concentrated light wavelength that promotes photosynthesis. If only actinic lamps are used, however, the water color in the tank will be very blue which is not visually appealing and the light is not intensive enough for the other processes of the aquarium inhabitants.
What are the other process???