Catnip Fish Cat Toy. Nothing is fishy about this Sardine-style catnip fish toy! Filled with only premium catnip, this toy will drive your cat crazy! Litter-ally the most potent catnip in the world! The 100% organic Catnip Fish is purrfect for the curious cat. Sold Individually. Pets should be supervised when playing with toys as no toy is completely indestructible.