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Brown sparse diatoms on san bed only
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10/09/2015, 03:21 PM
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Nano sapiens
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Join Date: Mar 2009
Location: East Bay, Northern California
Posts: 658
Quite common, actually. Age of the tank isn't a factor (I've seen posts from tanks in operation from 6 months to 7+ years with this issue).
What type of salt and how often do you do a water change?
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