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Old 11/09/2017, 04:08 PM   #6
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Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 87,483
Dissolved nutrients generally can't be removed by skimming. Phosphate can be removed only at an interesting rate if it's still attached to an organic. Of course, any skimmer will remove a bit of the water column, which amounts to an incredibly tiny water change.

Jonathan Bertoni
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