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Old 09-17-2008, 08:57 AM   #1 (permalink)
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Default T5 ho

Got a question for all you reefers. I'm in the process of buying a new light fixture for my 75 gal upgrade. I've already decided on a T5 HO and already found the light strip I want. The bulbs come with it (hopefully they will make it through shipping). But I get a choice of the bulbs. I was going with 2 actinic, and 2 white; but the white bulbs have choices as well, but I don't know the first thing about Kelvin's rating. The choices are: 10K, 14K, 20K, and 67K. I plan on keeping various softies: mushrooms etc. What would you all suggest? Thanks in advance!
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Old 09-17-2008, 09:03 AM   #2 (permalink)
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The higher the kelvin ratings the more blue tint.
67K is more yellow.
when I ran t-5 I used 10K and actinic
I am sure theres alot of other people that can help more than me.
goodluck w/ your tank
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Old 09-17-2008, 09:09 AM   #3 (permalink)
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what company makes the bulbs..

i would always get 2 extra bulbs diff kelvins , just incase you want to which them around. you can always have the 2 bulbs as extra.
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Old 09-17-2008, 09:10 AM   #4 (permalink)
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I am also in the same about choosing lights for a new fixture but here is what our new sponsor Nalc uses and what he will be trying soon on his tanks.

Current Setup:
1 - UVL Super Actinic
2 - ATI Aquablue Special
3 - ProColor
4 - UVL Super Actinic
5 - ATI Aquablue Special
6 - UVL Super Actinic

I am changing out my bulbs next week and the setup will be changed slightly:
1- UVL Super Actinic
2- UVL Actinic White - 14K
3- GE 6500K
4- UVL Actinic White - 14K
5- GE 6500K
6- UVL Super Actinic
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Old 09-17-2008, 12:36 PM   #5 (permalink)
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I am not entirely sure there is a right or wrong answer to this. I mean some corals might grow better under one kelvin rating then another. Then others might be wanting to acheive a certain "color" of lighting. I personally like 10k. I like the color. Just get good bulbs and you should be good to go.
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Old 09-17-2008, 10:10 PM   #6 (permalink)
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Quote:
Originally Posted by bschuerman View Post
I am not entirely sure there is a right or wrong answer to this. I mean some corals might grow better under one kelvin rating then another. Then others might be wanting to acheive a certain "color" of lighting. I personally like 10k. I like the color. Just get good bulbs and you should be good to go.
Now, I don't know a thing about lights and the etc. what to you, are concidered "good lights"?
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Old 09-18-2008, 03:35 PM   #7 (permalink)
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"Good Bulbs" mean that that they wont loose intensity or color rapidly. Some of the cheaper brand bulbs will do this. Also I would advise seeing some pics of tanks with T5 lights under different K-ratings to see which appeals to you most. You can just google brand names, look at the pictures, and see if you like.
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Old 11-21-2008, 10:19 PM   #8 (permalink)
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would different kelvin ratings have different par ratings or would par only depend on company making bulbs.
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Old 12-07-2008, 09:06 PM   #9 (permalink)
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from what i have read the different kelvin ratings are the color temp. Some colors penetrate the water better thank others.
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