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Welcome to SDR!

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    Hey Clarence...
    It's VERY hard to tell the difference between a 440nm and 460nm (you mentioned 420nm - there are no LEDs of 420nm in these fixtures. 420nm is very purple, and doesn't put out enough lumen for coral growth). BUT, there is a difference when filtered by the water column. Looking directly at the LED isn't going to show you that difference in spectrum, but the glow in your tank will. Glad to hear they are working great!!
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About xM3TH0Dx

Basic Information


About xM3TH0Dx
Real name:
Clarence
Biography:
Married with children
Location:
Off the 15 and 56 Fwy
Interests:
Photography
Occupation:
Dental Lab Owner
Uses Scripps Water:
No
Years in hobby:
13
Current Tank Type(s):
Reef
Current Tanks:
1

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Total Posts
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274
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0.08
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1
Most Recent Message
05-16-2012 03:20 PM
General Information
Last Activity
Today 06:21 PM
Join Date
11-23-2009
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