Alfagrog Volcanic Filter
Alfagrog Volcanic Filter Media 15kg
Alfagrog Ceramic Filter Media is made of a highly porous material that contains many thousands of tiny pockets in which bacteria can thrive making in an ideal material for biological filters.
Due to the weight of this media Alfagrog is not ideal for use in a "shower" or trickle filter and is better suited for use as a submersible media in multi bay...