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Nano-Tech Bio-Spheres (2Kg / 4.4lbs) - Maxspect
Maxspect$50.59Each Sphere has a surface area of 580ft2 - 20 Spheres is roughly equivalent to 40+ pounds of Live Rock! Ultra-Compact Biological Filtration Media Maxspect’s Nano-Tech BioSpheres are a durable dense arrangement of smaller...