- Each box: 2 bags / 2lbs
- Remove ammonia & nitrite, vast surface area / porous internal structure results in superior efficiency
- For freshwater, pond and saltwater fish tank use. (not recommended for reef tank as it is not designed to reduce nitrates)
- 100% aquarium safe non-metallic ceramic, will not leach aluminum or any heavy metal
- Can be cleaned, reused and sterilized