The body colour is generally solid black to greyish.During spawning season, males exhibit dark black body colour and their unpaired fins are lined with bluish edges.

 
  • 躯干一般全黑或灰色,每逢繁殖季节雄鱼体色便会转为深黑色,背鳍、臀鳍和尾鳍边缘泛蓝白色。
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