Maxspect Nano Tech Bio Spheres 1 kg/40 44 Pieces Balls for Aquarium Filter Sump

MAXSPECT Nano Tech Bio Spheres 1 kg / 40 – 44 Pieces Bio Balls for External Filter, Waterfall, Sump Freshwater and Marine Aquarium Stabilised microbial wastewater treatment technology with biological aerated filter (W-BAF). Cross-sectional area ratio to ultra-high filter surface. Nano-Tech Bio-Sphere is made of ceramic beads and is completely inert. Nano-Tech Bio Sphere are suitable for fresh and marine water. Use directly in the tub, sump, external filters, waterfalls, etc. Diameter: 3 cm Weight: 1 kg Number of pieces: approx. 40 - 44