2Pack – Biochemical Cotton Filtration Sponge for Fish Tank

Specification:
* Very suitable for using in freshwater and marine water
* Can be cut any sizes as your needed
* Lightweight & softness design
* Excellent water permeability
* A good item ensures your filtering effect.
* Cultivate the Purifying bacteria for biological filtration
* Dense shape makes it effective to avoid residue
* Can be used again after cleaning

What’s in the box
1 x 2Pack – Biochemical Cotton Filtration Sponge for Fish Tank