Kent Marine Phosphate Sponge for Aquariums
Kent Marine phosphate sponge is a ceramic medium which will adsorb phosphates quickly when placed directly in the water flow. Also absorb moisture for use as an air dryer for ozone and can be renewed over and over in moisture removal service. Works in fresh and saltwater aquariums or ponds.
Chances are there wasn't there wasn't a process.
It's content strategy gone awry right from the start.