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Old 08-13-2012, 02:02 PM   #1
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New bulbs?

I've had my t5 10000 bulbs for about 8 months and I've been getting a brown dusting on the sand through the day but at night it goes away. Is this a light issue could it be the water. Its an aquatic life light t5 setup.
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Old 08-13-2012, 04:27 PM   #2
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I guess it could be the lighting but then it might not. What are your water parameters? Are you using Tap water? (could be silicates)
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Old 08-13-2012, 07:09 PM   #3
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T5's should last 9-12 months. How long do you leave them on. If its more than 8hours a day then its probably the bulbs.
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Old 08-13-2012, 09:22 PM   #4
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I use a pur water filter. Never had problems before but thinking about it, I just replaced my filter after my last water change so maybe the filter was bad?
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Old 08-14-2012, 07:28 PM   #5
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before buying new bulbs just yet I would test phosphates and nitrates, I usually replace mine at 10 months
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