Bacteria Filter Media Stone Filtratlon Material for Aquarium Fish

Stable water environment, effectively filtered and

purified water. Great for culture of nitrifying bacteria. High quality filter material, wide range of applications. Item type: Fish Bacteria Material: ceramic Color: As picture shown Function: filter, increase bacteria, purified water Recommendation: The bacteria is placed in the mesh bag and placed in the filter . Recommended to wash once every 3 months, achieve better water purification effect.