So I just started using PhosGuard for the first time last Sunday. I was running Reef Flux for a 6 week cycle so I had no filtration other than filter floss during that time, and no water changes. As a result, phosphate went up to 0.70 PPM. However the good news is that I suffered no coral loss except some of my Xenia dying off (Go figure lol.) and combined with a Tuxedo Urchin and a bunch of Blue Leg Hermits, the treatment was mostly a success on my turf algae problem. But I started the PhosGuard after that first initial water change and within the 4 days that it tells you to test your water again, I was down to 0.22 PPM, but today, 24 hours later, it was up to 0.34 PPM. This may have been error on my part tho, because I did the test shortly after feeding, so that may have temporarily spiked the results.
In any case tho, it got me wondering about how to properly redose the PhosGuard. Are you essentially supposed to replace it with fresh media as soon as you see the Phosphates start to raise back up? That would basically mean the PhosGuard is exhausted, correct?
In any case tho, it got me wondering about how to properly redose the PhosGuard. Are you essentially supposed to replace it with fresh media as soon as you see the Phosphates start to raise back up? That would basically mean the PhosGuard is exhausted, correct?