The AquaClear 20 BioMax Filter Insert provides an optimal environment for beneficial bacteria growth. It works to reduce ammonia and nitrite levels in your tank, and it increases biological filtration efficiency by 30 percent. The AquaClear 20 BioMax Filter Insert is made exclusively for the AquaClear 20 Power Filter.
Filter media designed for the AquaClear 20 Power Filter
Reduces ammonia and nitrate levels
Increases beneficial bacteria
Composed of 85 percent Micro-Tunnels and 15 percent Micro-Cavities
