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 FilterBox 300: Tetra
Tetra Ersatzteilset für EasyCrystal FilterBox 300 - MM-Aquaristik