CrystalClear, 8 OZ KnockOut, Formulated For Helping Control Ick On Pond Fish, Will Remove Ick, Parasites, Protozoa, Bacteria & Fungi From Most Fish Species, A Broad Spectrum Treatment For Fungus, Ick & Flukes, Safe For All Fish & Plants, 8 OZ Bottle Treats 2,400 Gallons.