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Old 11-03-2008, 12:09 PM   #1
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Which UV Light?

Hey All,

I have a 90g Tank, and I am looking for a UV light, there are of course 100's out there all claiming to be better than the next. I Don't want to Hang-on type, This will pump in and out of my sump.

The LFS has AquaUV but it's pretty pricy not sure how good they are?

Some companies like Coralife say I only need 8w for 90g, other companies like AquaUV say I need 25w.

I assume the higher the wattage the faster (more) water you can run threw it because higher wattage will kill the bad stuff faster!?

Any Help on this is apperciated.

Thanks,

-TheChad
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Old 11-03-2008, 02:32 PM   #2
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I use the turbo twist. More time around the light is the key IMO.
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Old 11-03-2008, 03:00 PM   #3
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You also have to take into account the volume for your sump as well.....
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Old 11-16-2008, 04:02 PM   #4
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I have a question? what is the difference in brand. A UV light is a UV light, correct?
I mean a 24 watt UV light by coralife would operate the same as a 24 watt UV light by the more expensive brands correct? I think the key is the amount of time the light is in contact with the water. So, while design may be different, don't they all operate the same?
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Old 11-16-2008, 04:06 PM   #5
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PS.....Please don't take my comments as knowledge. I am really asking these questions because I am considering purchasing a UV unit. So, I want to know should I consider brand or should I consider design? Also, I have a 75 Gallon with the following:

2 yellow tangs
1 blue throat
1 4 strip damsel
1 blue damsel
assorted mushrooms
2 green star polyps

What size UV unit should I search for?
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Old 11-16-2008, 06:15 PM   #6
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Yes and No.

Design is probably the biggest difference, but the light itself will make a difference too.

Just like buying a German HQI bulb vs buying a China made bulb, they both make light but the German bulb will last longer, hold its color temp longer, and puts out more light.

So a 24w UV light isn't always equal to another 24w uv light..

-TheChad
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Old 11-16-2008, 07:12 PM   #7
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Also the turbo twist wraps around the light providing more exposure to the UV light. Most of them just go straight through.
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Old 11-16-2008, 07:14 PM   #8
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Ok....so, what wattage would you recommend for my tank?
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Old 11-16-2008, 07:18 PM   #9
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If you read the links on this page it will tell you a 9 watt will be sufficient.

Aquarium Ultra Violet Sterilizers: Coralife Turbo-Twist UV Sterilizers
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Old 11-16-2008, 07:28 PM   #10
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And don't forget the importance of matching it with the right pump. Don't want the water going thru too fast.
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