Feature

• can be used for sea water tank, freshwater tank and waterweeds tank with the sizes being cut
• this products is pore gap and flexibility
• most suitable breeding ground for cultivating the fine nitrobacteria
• the biochemical cotton has best effect on decomposing the excrement and the forage leftovers
• improving the filtering and leaning of the water
• can reduce the death of fish
• cleaned with water once per monthy, without blocking and deforming.
• can be used 16 times repeatedly
• size: 10m x 1m x 2cm (1 Big Roll)