Lighting

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Jacobsal91 said:
Can i keep all my corals alive and healthy without a 10k bulb? Strictly actinic lights?

I'm no expert I think it depends on the spectrum of the light and the Par. It's not always about the number 10k, 20k etc. I could really wrong though.

Some corals thrive with different colors say blue, royal blue etc, some like a full spectrum of lighting. But I think you'll need some white light in there somewhere.

Again I could be way off but I thought I just read something in the new aquarium magazine.
 
What if i have the coral life fixture with 2 10k and 2 actinic bulbs and got 2 more actinics on a separate fixture? Is that too much blue?
 
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