The Planted Tank Forum - View Single Post - 36 inch Current USA SunDial T5 HO question
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Old 11-08-2012, 10:22 PM   #2
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The four bulbs that are in the fixture currently are actinic bulbs (for coral growth). You can swap them out for other T5HO bulbs for freshwater tanks. There will be some discrepancies between which combo you actually need, but bulbs around 6,700K aren't bad.
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