The Planted Tank Forum - View Single Post - Using purigen in a sponge filter
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Old 11-06-2013, 07:06 PM   #8
Cokers
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It's a 5.5 gallon btw, so I feel 100ml is a bit overkill.

Is there a filter media that actively absorbs or removes nitrates? I've read that purigen just removes the source of nitrate, but not the nitrates themselves.
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5.5 Gallon College Tank

Last edited by Darkblade48; 11-06-2013 at 11:14 PM.. Reason: Please use the edit function for back to back posts to keep threads cleaner
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