Glossogobius, the tank gobies, is a genus of true gobies (family Gobiidae) found across freshwater, brackish, and estuarine habitats through much of the Indo-Pacific. The atlas's countries for the genus, Indonesia, Australia, the Philippines, Cambodia, Fiji, Japan, Mozambique, and Papua New Guinea, span from the East African coast to Oceania, one of the broadest ranges of any goby genus in the atlas. These are elongated, large-headed, large-mouthed predators, generally mottled in sandy or olive tones, that lie in ambush on soft or sandy bottoms in rivers, lakes, and coastal lagoons. The atlas covers 8 species, with a substantial size range from about 4.5–19.5 in, noticeably larger than most gobies.
Several Glossogobius species, especially the tank goby (Glossogobius giuris) and the golden tank goby (G. aureus), are important food and subsistence-fishery species across South and Southeast Asia rather than aquarium staples; the genus has only a small aquarium following, mostly among brackish-water and biotope keepers wanting a large, predatory centerpiece fish. Three of the eight atlas species carry a CARES designation, and the IUCN picture is mixed: four rated Least Concern, one Near Threatened, and three not yet formally evaluated.