• Each Box: 100pcs, Media size: 6.3x1.4x1.4 Inch
• Remove ammonia, nitrite, vast surface area / porous internal structure results in superior efficiency
• Effectively increase the amount of oxygen dissolved in water. 100% aquarium safe non-metallic ceramic
• Long lasting, highly porous ceramic material produces both mechanical and filtration
• For Sea Water, Aquarium Fish Tank and Koi Pond

aquarium filter media 100pc per box, good quality , more quantity.

https://www.youtube.com/watch?v=h9xu7xQg_S0