About Gobiodon citrinus (Rüppell, 1838)
Common Name and Taxonomy
Gobiodon citrinus, commonly known as the poison goby, is a species of goby.
Geographic Range
It is native to the Indian Ocean, ranging from the Red Sea and the African coast to the western Pacific Ocean, reaching as far as Japan, Samoa, and the Great Barrier Reef.
Habitat and Depth Range
It is a reef-dwelling fish found at depths between 2 and 20 metres (7 to 66 ft), and lives in association with Acropora corals.
Mucus Toxicity
The mucus this fish produces is toxic.
Size
This species reaches a maximum total length of 6.6 centimetres (2.6 in).
Body Coloration
Its body colour varies, and individuals can be either dark brown or pale yellow.
Head Markings
It also has blue vertical lines running around its eyes and gills.
Human Use and Captive Rearing
This species is traded in the aquarium hobby and has been successfully reared in captivity.