Anyone ever used it? I got a free sample at MAX and have been running it, my phos is still there but pretty low. I'm wondering if its worth buying again. I'm not running a GFO reactor so I thought this would be a good alt. I used egg crate and made a shelf in my filter sock and placed the bag on that shelf in the sock. So far it seems to be the best location for the stuff. I'm only running a 11oz on my 110 reef system. I'll be re newing with 1-11oz and a 5oz. So what you think guys? BTW chemi pure says this stuff needs to be replaced every 3months. My elite was every 6mo

