a new aquarium biological sponge,in good qualities with open pore and large surface area to promote bacteria breakdown

a new aquarium biological sponge

Non-toxic fir fresh and salt water aquarium

has a good filtering fucntion to make water clearer

supports to reduce the growth of bacterias

in good qualities with open pore and large surface area to promote bacteria breakdown if medicine used

safe for fresh water and mrine water

a good filtering tool in aquarium.

sizes: 32*12*2cm

four colors available: white,blue,green,yellow

biological sponge