Lighting?
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Lighting?

This is a discussion on Lighting? within the Coral and Reef Creatures forums, part of the Advanced Saltwater Discussion category; --> This might be in the wrong area to post in, but wanted to ask.... Do corals need Actinic lighting or would you go with ...

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Old 06-23-2009, 07:38 AM   #1
 
Lighting?

This might be in the wrong area to post in, but wanted to ask....

Do corals need Actinic lighting or would you go with just straight 10,000 K in a power compact lighting system?
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Old 06-23-2009, 08:01 AM   #2
 
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Corals do not need Actinic lighting to grow. The atinic lighting is meant to offset the overly yellow appearance of the 10000k spectrum of light. Simply put, corals will look poor under 10000k lighting alone. Another common solution to the absence of actinic supplementation is the use of a higher spectrum bulb. 15000k or 20000k bulbs will povide a nicer look, but coral growth is sacrificed as result.
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Old 06-23-2009, 08:09 AM   #3
 
Thank You for answering my question...
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Old 06-23-2009, 08:39 AM   #4
 
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you're welcome
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Old 08-02-2009, 09:18 PM   #5
 
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best w/ 50/50 or 20000k supplemented w/ 260nm actinic
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Old 08-02-2009, 09:29 PM   #6
 
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Quote:
Originally Posted by aquakid View Post
best w/ 50/50 or 20000k supplemented w/ 260nm actinic

i disagree and 20,000k will be blue enough you wont need to use the actinics.
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Old 08-03-2009, 01:20 PM   #7
 
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Originally Posted by onefish2fish View Post
i disagree and 20,000k will be blue enough you wont need to use the actinics.
20k is pretty blue. I have 2 20k halides and was running 2 VHO 50/50s. I swapped the 50/50s out last week to 2 actinic and it's definitely BLUE. Everything glows but I think I'll change my halides now to 14k or 10ks.
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Old 08-03-2009, 01:22 PM   #8
 
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yea with the 20ks you dont really need the extra actinics but ultimately the color of the tank is a personal pref. but they do come in handy as "warm up lights" to come on before the halides turn on and after they turn off.
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