Characteristic：

1.This product can be used for sea water, fresh water and water plant tank, and can be free cutting;
2.It is professionally analyzed as the best place for cultivation of nitrifying bacteria because of its dense mesopore;
3.It has optimal effect on resolving excretion and feed residual, improving water quality through filtration and cleaning and reducing death rate of fishes;
4.It is recommended to clean it by clean water once a month to ensure non-blocking and non- deformation. After 
cleaning, it can be used repeatedly and continuously.