Originally Posted by Laeris
Purigen isn't a true filter media, in the sense of harboring beneficial bacteria. It's more of a water clarifier. It's meant to be used in conjunction with media that does carry bb. Otherwise when you remove it to regenerate, you'd lose a huge chunk of your bb and mini cycle every time. @_@
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Which isn't a problem since we were asked about what media to be run in a reactor, clarified in a later post, and that when one utilized the lbs per gallon rule with both rock and sand there is no chance to ever run into this issue of removing beneficial bacteria.
Back on the topic at hand, I have gone back and forth between GFO
and Phosguard as phosphate removers and tend to prefer the Phosguard as the GFO
always ends up clumping in my system. It can be difficult to get the 'slow boil' GFO
needs if not in a single reactor, where mine is a dual. Some food for thought that cost me money to figure out.