Savio SpringFlo Biological Filter Media Size:Full Roll These bases are hollow so

These bases are hollow so that they can be filled with sand or gravel

and arms (where applicable)

For a sparkling clean and clear pond

EasyPro Barley Straw Pellets are made of 100% barley straw

Controls a broad spectrum of algae: planktonic

Savio SpringFlo Biological Filter Media Size:Full Roll These bases are hollow soSavio Spring Flo Filter Media is the patented media that works even when dirty! Encourages better adhesion and proliferation of bacteria using a special formulation of polypropylene and calcium carbonate. The textured surface is embossed with millions of dimples to rapidly secure and develop beneficial microorganisms. It does not clog and it resists channeling and compaction in up flow or horizontal flow pressure filters. Easy to clean by shaking