Ive been struggling to keep my phosphates in check for the last year. They usually hover around .12 - .08 So I just bought a phosban reactor 150 and filled it up with about three inches of rowaphos. I watched a video on how it should work and all looks well. My question is this: How often do you switch out the media? I was hoping to replace it once a month but was wondering what other people do as well.
Thanks
Thanks