Nano-Tech Bio-Sphere/Bio-Block
Only 10 pieces Nano-Tech Bio-Sphere can replace up to 20lbs (10kgs) live rocks.
For Bio-Blocks,simply place them directly in your sump or area with high water flow.
Putting all Nano-Tech Bio-Sphere in mesh bag make it easy to maintenance and save huge place for other equipments. It can be used in both fresh water and seawater environment.
The Bio-Spheres/Bio-Blocks should be cleaned or replaced every 6 months for optimal results, however when cleaning/replacing old Bio-Spheres/Bio-Blocks, DO NOT replace all of them at the same time. Clean/replace half of the Bio-Spheres/Bio-Blocks such that there are sufficient bacterial colonies remain to reestablish themselves in the newly cleaned/replaced Bio-Spheres/Bio-Blocks.