黑寶石四間鯽

Puntius nigrofasciatus — Black Diamond Tiger Barb

The Black Ruby Barb is a jewel-toned schooling fish from Sri Lanka; males turn a dramatic deep ruby-red with velvety black vertical bars during spawning, while females remain more subdued. It is a hardy and active fish that thrives in planted tanks with open swimming space. Like most barbs, it does best in groups of six or more to reduce fin-nipping behavior.