Product description
Seachem Purigen, 100 ml, with a filter bag.
Purigen is an adsorbent that takes organic waste out of the water before it becomes nitrate. It is not activated carbon and it is not a bacterial bed.
The 100 ml pack comes with a bag. When the beads darken they can be regenerated according to Seachem's instruction, instead of being thrown away at once.
