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Old 09-02-2008, 08:44 PM
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Myka Myka is offline
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5 ppm?! What brand test kit are you using? Have you checked the expiry date? What kind of algae is on your sand?

Some of the information in here is geared towards lowering phosphates: http://www.canreef.com/vbulletin/showthread.php?t=44473
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