Nano Tech Bio Block ( 2 blocks)
Maxspect Nano-Tech Bio-Block are a new filter media for use in freshwater and marine water aquariums. With an ultra-high surface cross-cutting ratio and filtration area, each Bio-Block has up to 1,080 m² surface area for the establishment of bacterial colonies. With the use of stabilized microbial sewage treatment technology (W-BAF), the Bio-Spheres have a unique advantage in the treatment of water column with high Ammonia-Nitrogen (NH4-N) and high Nitrate-Nitrogen (NO3-N). Cost $79 buying fro