In order to test for effectiveness of Purephos, I had my phosphate rise to 0.3ppm
Then I got my bottle of 500ml Aquaz Purephos on 26 February 2005
The granules inside were brown as compared to rowa which is black. So when I reached home, I rinsed it with water to get rid of the fine particles and loaded the rest into my FR. I must say, I am very impressed with the size of the granules as each were of similar size and this made fluidisation much easier and more effective.
So after 1 day of using the product, I checked my phosphate levels and guess what? It had dropped to <0.3ppm but not yet undetectable.
In conclusion, i am satisfied with the pricing, quality control and effectiveness of the product