Rated 3 out of 5 by 2
Rated 5 out of 5 by sf67 Zero Phosphate
I have used these phosphate filter pads for the past six months and my phosphate level has remained at zero.
May 3, 2014
Rated 1 out of 5 by chap Even bigger mess!
My disappointment was two-fold. Most importantly, I really didn't see much difference in the slime algae issue. On practical application, the instructions say "can be folded for use anywhere in the filter system." Putting it ANYWHERE in the filter-system resulted in backing up water, overflows, blockage, etc. I eventually placed the pad on-top of my bio-balls, so the water could flow through. It TURNED INTO MUSH, which then had to be cleaned from the bio-ball chamber. YUCK !!!!
February 20, 2012