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
Tetra EasyCrystal Filter Pack C600
Tetra EasyCrystal BioFoam 250/300
Tetra Easycrystal Biofoam 250/300, Fish Filters & Media Product Kuwait – Petsmarket
Tetra TetraTec Easy Crystal Carbon and Filter Pack 250-300 EasyCrystal Media | eBay
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