Ocean's Free Nano Taro B.B Roll (Far-Infrared Effect)(8pcs) Only used 1 bar, still got 7 more bars. Reccomended by Henry(Marine Life), He uses it in this tanks at ML • Treated and baked under 1,800 Deg C • Add in valuable minerals and trace elements • Breaking water molecules and increase dissolved oxygen • Help to remove toxic substances and heavy metals • Induce fish coloration • Help increase fish metabolism and expelling toxic from fishes • Control algae growth and pathogenic