红尾黑鲨​ hóng wěi hēi shā ​Labeo bicolor

红尾黑鲨，热带鱼，别名：两色野鲮、红尾鱼、红尾鲨、红尾鲛、黑金鲨，学名：Labeo bicolor ，科种：鲤科，产地：泰国，食物：喜食动物性饲料，任何活饵均可，但要增加植物性饲料，性情：性情稍粗暴，对其它鱼类温和，但同种之间却打得厉害。

百度翻译

Red tailed black shark, tropical fish, alias: bicolor dace, red tailed fish, red tailed shark, red tailed shark, black golden shark, scientific name: Labeo bicolor, family and species: Cyprinidae, origin: Thailand, food: like to eat animal feed, any live bait can be used, but plant feed should be added. Temperament: slightly rough, gentle to other fish, but fierce among the same species.