[APD] Micron filtration and nutrients

[Sean Kettle <kettles at videotron_ca>]

I have a HOT Magnum that I like to put on the tank once a week to polish the
water.

Which elements, if any, will be stripped from the water column from a micron
filter.  I believe Marineland says the filter is good for particles down to
4 microns.

Would any of the macro nutrients be removed?  What about traces?

Just curious... Otherwise I'd run the micron all the time as a secondary for
some additional movement in my 75 gallon.

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