During the mating season, from about July to October, adult female ku fish become lovely "blushing" brides, as a pink flush spreads out from under their gills and fins and over their stomachs.
成熟的「雌鮸仔」在交配季節，則是標緻害羞的新娘，在它的鰓蓋下緣、胸鰭、腹鰭及臀鰭都泛著粉紅色，腹部則呈現淡紅色。