Brachygobius is a genus of tiny gobies known almost universally by their common name, bumblebee gobies, for the bold black-and-yellow banding that most species share. The atlas's 7 species are among the smallest fish in the hobby, measuring roughly 0.5 in to 1.5 in, and are native to Southeast Asia, with records spanning Indonesia, Thailand, Malaysia, Brunei, Cambodia, India, Laos, and Myanmar. They live in brackish and freshwater habitats near the coast — mangrove creeks, estuaries, and the tidal-influenced lower reaches of rivers — a habitat preference that sets them apart from most purely freshwater aquarium gobies.
Bumblebee gobies are genuinely popular in the aquarium trade for their striking pattern and diminutive size, with Brachygobius doriae and B. xanthozona (goldenbanded goby) among the names most often seen for sale, though species within the genus are notoriously easy to mix up and trade identification is often unreliable. Long-term success with them tends to hinge on replicating a touch of brackish salinity rather than keeping them in pure freshwater, and most are picky, live-food-leaning feeders that can struggle against more assertive community tankmates for food. The genus's conservation status is a mixed, under-assessed picture — three species Not Evaluated, three Least Concern, and one Data Deficient — typical of small estuarine gobies that rarely draw dedicated survey attention.