A closer look

For use in all soft or hard freshwater or brackish aquariums; may also be used in marine systems
When properly colonized, it will reduce toxic ammonia and nitrites to near zero in all freshwater aquariums
Provides huge amounts of aerobic and anaerobic surface area for efficient bacterial colonization; one 2” block has about 10,000 square feet of useable surface area
Reduces phosphate signiﬁcantly and dissolved organics
Works excellently as the only ﬁltration medium for the aquarium or may be employed in addition to other ﬁltration media
Made in the USA

Xport Freshwater BIO Block - 2 Inch