Gobiodon okinawae

From RTAW Reefpedia
Jump to: navigation, search
See Talk:Gobiodon okinawae for individual experiences with this species, Gobiodon okinawae. Feel free to add your own personal experiences.

Common Name
Yellow Coral Goby
Binomial Name
Gobiodon okinawae
Gobiodon okinawae.jpg
Scientific Classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Gobiidae
Genus: Gobiodon
Species: okinawae

Common Names

  • Yellow Coral Goby
  • Okinaeae Goby
  • Yellow Clown Goby



A small, oval shaped fish, it is easily distinguished by others of its genus by its distinct bright yellow colour. A small round pale spot on cheek.

Similar Species

Could possibly be confussed with the similar coloured G. citrinus (Poison Goby). G. citrinus grows larger, and has three to four vertical blue/white lines running vertically between its head and pectoral fins, with one faint line running horizontally at the base of the dorsal fin.

Maximum Size

3.5 cm[1][2][3][4]

Associated Organisms

Associated with branching type corals like Acropora sp. in the wild[2] and usually adopt a certain coral head as home.


Generally known as a peaceful fish, with personality, which prefers quiet tank mates. If not in a mated pair it will fight with it's own kind or other coral goby in a small tank. Provide plenty of coral heads and a larger tank to keep more than a single or mated pair happy.[1]

Captive Care

Tank Size

35 litres[4] for a single individual

Water Flow

Typical water flow required for a reef aquarium


No special lighting requirements


Carnivore - grazes on micro-organisms on live rock but will also eat most meaty foods offered like spirulina-enriched brine shrimp, mysis shrimp and even pellet / flake. Feed once a day in a live rock established tank and more frequently if little natural tank food exists.[1][4]

Growth Rate



Reasonably hardy and disease resistant fish.






Incompatible with it's own kind or similar coral goby in a small tank unless a mated pair. More can be kept in a larger tank if enough living space to go around.[1][4]


May nip at small polyped coral and a mated pair will clean tissue off coral branches to lay eggs. Neither of these activities usually do any permanent damage to coral involved.[1][4]


Compatible with other invertebrates.


Female lays approximately 400-600 eggs, commencing 1 hour after dark. Once laid the eggs are constantly guarded by the male, only leaving to occasionally feed. Incubation lasts for five days at 26 deg. C, with hatching commencing 1 hour after dark. Larvae are 2.0-2.4mm at 12 hours post hatch.

Local Ecology


Indonesia to Marshalls Islands, north to southern Japan, south to north western Australian shelf reefs and southern Great Barrier Reef.[3]


Among Acropora sp. branches in sheltered lagoon reefs.[3][2]

Additional Information

G. okinawae are believed to have a noxious body slime which makes them unpalatable to larger predatory fish.[1]



  1. 1.0 1.1 1.2 1.3 1.4 1.5 (Michael 1999): Michael, S.W., Marine fishes : 500+ essential-to-know aquarium species, Microcosm: Shelburne, 1999.
  2. 2.0 2.1 2.2 (http://www.fishbase.org): Froese, R., Pauly, D. Fish Base, World Wide Web electronic publication, 2008, Retrieved: 18 Feb 2009, http://www.fishbase.org/Summary/SpeciesSummary.php?id=7217.
  3. 3.0 3.1 3.2 (Lieske Myers 1996): Lieske, E., Myers, R., Coral reef fishes : Caribbean, Indian Ocean, and Pacific Ocean : including the Red Sea, Princeton University Press: Princeton, 1996.
  4. 4.0 4.1 4.2 4.3 4.4 (http://www.liveaquaria.com): LiveAquaria.com, World Wide Web website, 2009, Retrieved: February 2009, http://www.liveaquaria.com/product/prod_display.cfm?c=15+2124+1441&pcatid=1441.