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在目前已记录的78个属500多种隆头鱼里,有至少一半可以用于观赏,常见在贸易中的不少于50个品种。可惜几乎没有哪个品种具有强烈的代表性,它们大多都是水族箱中的配角。隆头鱼类的个体差异非常大,巨大的苏眉可以生长到1m以上,而常被饲养在礁岩生态水族箱中的黄龙,只有10cm长。几乎所有的隆头鱼都是肉食性的,它们具有尖利的牙齿帮助自己撕碎肉块。一些品种具有攻击性,喜欢欺负水族箱中的其它鱼.而且可以对这些鱼造成致命的威胁。所以不建议将体长超过20cm的龙头鱼和小型观赏鱼饲养在一起。
At least half of the more than 500 species of spiked fish in the 78 genus have been recorded for not less than 50 species commonly found in trade. Unfortunately, there are few species that are strongly represented, most of them are supporting roles in aquaria. Longsword fish is very large individual differences, huge eyebrows can grow to more than 1m, and often reared in reef aquarium Huanglong, only 10cm long. Almost all fishes are carnivorous and have sharp teeth that help to tear themselves apart. Some species are offensive, preferring to bully other fish in the aquarium, and can be a deadly threat to these fish. Therefore, it is not recommended to keep faucets longer than 20cm and small ornamental fish together.