![Tetra EasyCrystal Aquarium Filterbox 300 - Filter für 40-60 L Aquarien, für kristallklares gesundes Wasser, einfache Pflege, intensive mechanische, biologische und chemische Filterung : Amazon.de: Haustier Tetra EasyCrystal Aquarium Filterbox 300 - Filter für 40-60 L Aquarien, für kristallklares gesundes Wasser, einfache Pflege, intensive mechanische, biologische und chemische Filterung : Amazon.de: Haustier](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71O9GHGfSeL._AC_SL1500_.jpg)
Tetra EasyCrystal Aquarium Filterbox 300 - Filter für 40-60 L Aquarien, für kristallklares gesundes Wasser, einfache Pflege, intensive mechanische, biologische und chemische Filterung : Amazon.de: Haustier
![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 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](https://i.redd.it/j3evdkmd4kh31.jpg)
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 Cartridge for EasyCrystal Filter 250/300, for Fast and Clean Filter Replacement,Green : Amazon.co.uk: Pet Supplies Tetra EasyCrystal Cartridge for EasyCrystal Filter 250/300, for Fast and Clean Filter Replacement,Green : Amazon.co.uk: Pet Supplies](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71GScKdwu0L._AC_SL1001_.jpg)