Common name: Citrinus Clown Goby

Scientific name: Gobiodon citrinus (Rüppell, 1838)
Lemon Coral Goby (Gobiodon citrinus) in the Red Sea, EgyptGobiodon citrinus. Underwater word of the Red Sea. Photo was taken in Makadi Bay, Hurghada, Egypt
Lemon Coralgoby on a Table Coral in the Red SeaMacro of a Citron coral goby (Gobiodon citrinus) in a hard coral. Small bright yellow fish with white stripes on head.

General information

The Citrinus Clown Goby, also known as the Poison Goby or Yellow Coral Goby, is a small and vibrant fish that is popular among reef aquarium enthusiasts. Its scientific name is Gobiodon citrinus, and it belongs to the family Gobiidae. This species is known for its bright yellow coloration and peaceful demeanor, making it a favorite for adding a splash of color to a reef tank.

Details

Recommended minimum tank volume
40 liter (11 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
24 to 26 °C (75 to 79 °F)
Acidity
pH 8 to 8.4
Average size
6 cm (2½″)
Care level
Moderate to easy Needs hiding spots
Diet
Carnivore Mysis, brine shrimp
Social
Pair Pairs are territorial
Reefsafe
Yes
Aggression
Semi aggresive Territorial in small tanks
Captive bred
Yes Available captive-bred

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Goby
    Gobiidae
  6. Genus
    Clown Gobies
    Gobiodon
  7. Species
    Citrinus Clown Goby
    Gobiodon citrinus (Rüppell, 1838)
  8. Synonyms
    Gobiodon hypselopterus Bleeker, 1875
    Gobius citrinus Rüppell, 1838

Care

Citrinus Clown Gobies are hardy and can adapt to a variety of tank conditions, but they thrive best in well-established aquariums with plenty of live rock for hiding and grazing. They are small, reaching only about 3 inches in length, so they don't require a large tank. However, they do appreciate a mature tank with stable water parameters. These gobies are not picky eaters and will accept a variety of foods including frozen and dried preparations.

Reproduction

In the aquarium, Citrinus Clown Gobies may spawn if they are kept in a pair or small group. They lay their eggs in crevices or on the underside of coral branches, where the male will guard them until they hatch. The larvae are planktonic and can be challenging to raise due to their small size and specific feeding requirements.

Symbiosis

While not involved in a symbiotic relationship as intimate as clownfish and anemones, Citrinus Clown Gobies are often found living among the branches of stony corals in the wild. They may help control pests like Acropora-eating flatworms, which can benefit the health of the coral.

Habitat

Citrinus Clown Gobies are native to the Indo-Pacific region, where they inhabit coral-rich areas of lagoons and outer reefs. They are typically found at depths ranging from 1 to 15 meters, often associated with branching corals like Acropora.