Canister filter medium

johnangelo

AC Members
Jun 3, 2006
22
0
0
I have a 75 gal FOWLR with sump, magnum 350 (with rowaphos and Purigen), UV, and protein skimmer. I have another magnum 350 available to me. My question is should I use it on the tank as well and what filter medium would you suggest?
 
Nothing. Run it empty to prevent detritus/nitrate buildup.

The other options are:

1. carbon/phosphate removal media
2. live rock rubble for a mini-refugium
3. filter floss for occasional water polishing
 
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