When a female approaches, the male fish promptly begins to serenade her by swimming back and forth all around her, spreading his swallowtail fins. These overtures display the rainbow sheen of his coloration to best effect, and his whole body trembles with excitement.
當雌魚接近，雄魚即刻展開美麗的愛情進行曲，在雌魚四周游來盪去，暴張牠燕尾般的尾鰭，這一初步行動，使牠的體色更鮮明，發出彩虹般的光芒，身體也因為心情極度興奮而顫慄。