"CrystalClear"

                New sponge filter technology                           “Combo Sponge”   This Sponge filter provides both mechanical and biological filtration in a separate function. The biological filtration takes place in the inner column that is filled with clay beads. This means when you want to clean the sponge, you no longer half to worry about destroying the biological media, as the sponge is the mechanical filter and you can ...