Aquarium Filter Media Porous 100pcs Bio Ceramic for Fresh Water 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 Each Box: 100pcs, Media size: 6.3×1.4×1.4 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