Auqarium Filter Media Breather Bio Rings Calcinated Clay (1KG) + Filter Bag

Breather rings provide a rougher, more porous structure based on its raw material being Clay, undergoing calcination in 1300°C temperatures. Clay has many rich minerals including aluminium, magnesium, iron, sodium, potassium and calcium. When the water is partially acidic, the clay properties slow release calcium and sodium, effectively preventing PH reduction.