There are abundant micro pores inside the material. It greatly improved the surface area and makes it be able to adsorb the heavy metal ions and other harmful substance. It also provides endless growing space to nitrifying bacteria.
Neutral pH filter media can be used on fresh & marine water.
Use it with Hollow Ball can get even better result.
Volume: 1L, 3L, 10L
Replacement rate: 6 months
Rinse the media thoroughly with water before using to prevent cloudy.
Amount: 5% of water volume.