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Originally Posted by Reefneck
The Actinics are really for aesthetics. You don't have to have them. Personal Choice.
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This may be partially true, but there is evidence that the blue light it may play a role in the rate of photosynthesis in corals. Its true with terrestrial plants, but then again it may be different with coral and underwater plant species.
But like Reefneck and Damon said, youll get better growth with more "red" light.
BTW, i wouldnt go measuring your light in WPG. How deep is your tank? Thats the main question you should be asking.