[Cougra]

I'm using it instead of carbon and phosban. I hate that carbon has a very short limited life span and that it's garbage once it's been used once. You wont find any carbon in my aquarium supplies cabinet. I've used Kent's phosphate sponge and haven't really noticed it make any difference, but then again I only have a cheap phosphate test kit that I use to indicate whether or not I have higher or lower levels of phosphates present. Since I haven't tested the water for exact levels of phosphate before I started using the purigen any test I preform now isn't going to tell me anything about how well the purigen works on phosphates.