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Old 03-04-2013, 07:27 PM   #2
latchdan
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http://www.theplantedtank.co.uk/algae.htm

You can get phosphate from anyone that sells dry ferts. You can also get it from fleet enemas. Low phosphates seem to be the reason GSA occurs, you may also have GDust A that is caused from high light, reducing photo period helped me.
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