Acentrogobius is a genus of small gobies distributed widely across the Indo-West Pacific, recorded in the atlas from Australia, Indonesia, Japan, and the Philippines through Bangladesh, China, India, and Malaysia. Atlas species measure 2–5 in. Typical of the genus, they inhabit estuaries, mangrove creeks, and sandy or muddy coastal shallows where fresh water meets the sea, tolerating the shifting salinity of tidal and lowland river habitat rather than living purely offshore.
These are not aquarium staples - Acentrogobius species draw far more interest from field ichthyologists and brackish-water specialists than from the mainstream fishkeeping trade, and none has an established ornamental following. The pupilspot goby (A. janthinopterus), striped sandgoby (A. pflaumii), and spotted green goby (A. viridipunctatus) are best known from regional surveys of Indo-Pacific estuarine fish communities. Conservation status is thinly documented: one of the three atlas species is Least Concern and the other two are Not Evaluated.