05-22-2011, 06:19 PM
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It might be fine, especially as a second tube with the Life-Glo. Can you provide me some data, like manufacturer, name of the tube? Then I can look it up; what I want to see is the spectrum graph if one exists. A link to their website would be nice if you have it, save me tracking it down.
I had a Life-Glo 2 and a 11,000K Ultra Daylight over my 115g until the latter became too weak. I knew from the spectrum that this was high in the blue and red so it was balanced, but the higher blue gave a nice "cool white" hue which was still quite "natural" in combination. Don't forget that the Kelvin number is only the measurement of colour temperature, as we see it. It is the actual spectral makeup of the tube which counts as far as plant/algae issues.