Seachem Purigen - Ultimate Filtration - 100ml ~ Treats 100 Gallons ~ Regenerable Bird Accessories Excavator™ holds its shape so

Excavator™ holds its shape so burrows and tunnels won't collapse All Natural

The filter works best in a small

and Trace elements and even the Alkalinity components are used up in a relatively fixed ratio

the aquarium environment remains stable

Seachem Purigen - Ultimate Filtration - 100ml ~ Treats 100 Gallons ~ Regenerable Bird Accessories Excavator™ holds its shape soPurigen is a premium synthetic adsorbent that is unlike any other filtration product. 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 other competing products by over 500%. Purigen controls ammonia, nitrites and nitrates by removing nitrogenous organic waste that would otherwise release these harmful