The Planted Tank Forum - View Single Post - Question about algae on plants
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post #5 of (permalink) Old 01-30-2013, 06:45 AM Thread Starter
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Join Date: Jan 2013
Location: Portland, OR
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Originally Posted by OldJedi View Post
How old is the bulb? I believe that an old (over a year) bulb can put out light in the wrong spectrum and encourage more algae than plant growth. That and the color temp of the bulb--which should be around 5000 - 6700K.
The bulb is brand new, bought about a month ago. I wish I had the specifics but I threw the box away

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