The Planted Tank Forum - View Single Post - Psyched with my CL find! Will this work?
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Old 01-31-2013, 12:19 PM   #4
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Originally Posted by h4n View Post
Why wouldnt you use 10k bulbs?

But yes if the fixture is old. I would probably replace the bulbs.
6500k bulbs put out enough blue light that's why.
Do you know how much red light these bulbs output ?
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