i just want to update that towards the end of the fourth week of dosing (yesterday), my phosphate is now down to 0.03ppm .
a few sps are midway on their old original coloration while other sps species are still dull and has not yet started changing color after about 5 months in 0.1ppm phosphate.
also, my water looks very clear and the smells a lot better (fresher).
in conclusion, at this early, i could say that the product works based on visual and measured results. in fact im very happy with it.