This is a classic filter media for aquarium lovers. Porous ring made from natural minerals can provide large space for bacteria growth and maintain good flow rate of water. It has balanced performance of filtration, bacteria culturing and mineral condition. It is permanently recommended as an ideal filter media by aquarium workshop and fish farm.
Volume: 1L, 3L, 10L
Replacement rate: 6 months
Rinse the media thoroughly with water before using to prevent cloudy.
Amount: 5% of water volume.