Purigen - I am running a Tetra Easycrystal Filterbox 600 which came with my tank (unfortunately since it's freaking huge). I wanted to put some Purigen in there, but where do I
Tetra EasyCrystal Filter Pack C250/300 Filtermaterial mit Aktiv-Kohle, Filterpads für EasyCrystal Innenfilter, geeignet für Aquarien von 15-60 Liter, 3 Stück, grün : Amazon.de: Haustier