Nihao Aquarium- Biochemical Sponge (Black)

The use of Biochemical Sponge:

• The biochemical cotton us 100% of polyester fibers, made of high temperature above 200 Celsius, with a sterile, non-toxic, environmental protection and other advantages.
• The biochemical cotton is in moderately dense and softness, non blocking, no deformation can be reused after cleaning
• The most suitable biochemical cotton cultivation excellent  denitrifying bacteria. After filtration, the effective decomposition of fish excrement and feed residues to make the water clean, and reduce mortality rate of fish
• It is available for seawater and freshwater tank, it can be resize optionally