Royal blue : deep dark grain-flower-blue without other colour portions. The ventrals may have white or black peaks.

皇室蓝：鱼身深蓝无杂色。有时腹鳍尖端有白或黑斑。

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Royal blue : deep dark grain-flower-blue without other colour portions. The ventrals may have white or black peaks.

皇室蓝：鱼身深蓝无杂色。有时腹鳍尖端有白或黑斑。

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