AquaClear Filter Insert BioMax 20gal

Fits Aquaclear 20 and Mini
· Increases biological filtration efficiency by 30%

· Enhances ammonia and nitrite reduction
BioMax provides the ultimate upgrade for existing filter media. The rings provide the largest surface area and maximum number of pores perfectly sized to accommodate vital bacterial colonies. BioMax rings increase a filter’s capacity to create optimal biological water conditions for aquarium inhabitants.