Product name：150gal Replacement Filter Sponge X2
size: 15 x 12.5 cm (5.9" x 4.92")
Description
Advise: Replace the bio-sponge three month, to ensure the filtrating effect as well as the growth of the nitrifying bacteria.
Product name：150gal Replacement Filter Sponge X2
size: 15 x 12.5 cm (5.9" x 4.92")
Description
Advise: Replace the bio-sponge three month, to ensure the filtrating effect as well as the growth of the nitrifying bacteria.
