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#1
02-01-2010, 04:55 PM
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Lighting Question
So here's my question, On my new tank which is 25" deep, I have decided to go with 400w ballasts and lighting. My question is what rating should the bulbs have for output. 20000K or 14000k? I will not be putting in a lot of sps but will be trying a few when tank is set up.
Thanks in advance for all advise.  
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#3
02-01-2010, 09:33 PM
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if you want your colours to pop go with the 20k. the light coloring will be quite blue aswell.
if you want a faster growth from your coral go for the 14k. this range will be a little more white
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#4
02-01-2010, 09:41 PM
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I like the white brighter look myself so i went with 14k the 20k has a much more blue look to it ..When i had 20k bulbs my sps didnt really grow to much at all even as close to the top i could put them nothing just stayed alive ..changed to 14k and wow what a difference with the color and growth i have sps in the mid level growing good now
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150 mixed reef 14 fish 4 shrimp 50+ snails 55 sump long spine urchin 20 snails Shawn
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#5
02-01-2010, 10:13 PM
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400W on a 25" tall tank seems like overkill if you don't plan to be SPS dominant. That's a lot of power and a lot of heat for no real benefit. 250W would be plenty IMO, and you could go with the 14K.
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180G Office Reef. Started Sept 2012 http://www.canreef.com/vbulletin/showthread.php?t=88894 62G Starfire Reef. Started Jan 2013 http://www.canreef.com/vbulletin/showthread.php?t=89988
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