RE: phosphorus and phosphorus control

[Robert H <robertph at best_com>]

Roger wrote:

We usually think of phosphorus more in terms of dissolved phosphate, but
(excepting the many biological forms) phosphorus actually occurs in
aquariums in four different forms:  dissolved inorganic phosphorus,
particulate inorganic phosphorus, dissolved organic phosphorus and
particulate organic phosphorus.  The inorganic forms are phosphates and
the organic forms are molecules derived from the decomposition of
biochemicals.  There are important interconversions between the different
forms.<<

Roger, which of these forms are absorbed by phosphate remover media? And 
perhaps this is a silly question, but if phosphorus is added in the tank by 
tap water, how does water changes reduce it? >grin<

Robert Paul  H
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