Brachygobius nunus, the Golden banded goby, is a species of bumblebee goby, a small genus of gobies that takes its common name from their round bodies, big heads, and their overall yellow to golden coloration interrupted by four brown to black vertical stripes reminiscent of the striped pattern of a bumblebee. They have also been figuratively described as "buzzing" from one surface to another inside the aquarium. Like other members of its genus, it is popular as an aquarium fish.

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