Seachem purigen is a premium synthetic adsorbent that is unlike any other filtration productr it is not a mixture of ion exchangers or adsorbents but a unique macro porous synthetic polymer that removes soluble and insoluble impurities from water at a rate and capacity that exceeds all others by over 500r purigen controls ammonia nitrites and nitrates by removing nitrogenous organic waste that would otherwise release these harmful compoundsr seachem purigens impact on trace elements is min