AquaClear Bio-Max Inserts increase the biological filtration efficiency of your aquarium filter, while enhancing its ability to reduce harmful ammonia and nitrites. These highly porous ceramic rings provide maximum surface area to facilitate the growth of beneficial bacteria. These bacteria break down toxic water contaminants and help to create a clean, healthy aquatic habitat for your aquarium fish.
Sizing: Sized to fit AquaClear Aquarium Filters.
