Common name: Onestripe wormfish

Scientific name: Gunnellichthys pleurotaenia Bleeker, 1858

General information

The Twoline Goby, scientifically known as Gunnellichthys pleurotaenia, is a slender and elongated fish that is well-suited for reef aquariums. This species is known for its striking orange to yellow longitudinal stripes that run the length of its body, contrasting against a pale to translucent background. They can reach up to 15 cm (6 inches) in length and are often found perching on rocks or nestled in crevices.

Details

Recommended minimum tank volume
75 liter (20 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
18 cm (7″)
Care level
Moderate to easy Needs hiding places
Diet
Carnivore Mysis, brine shrimp, small crustaceans
Social
Solo
Reefsafe
Yes
Aggression
Peaceful
Captive bred
No
Conservation statusSource: IUCN Red List
ExtinctThreatenedLeastConcern

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Wormfishes
    Microdesmidae
  6. Genus
    Firefish
    Gunnellichthys
  7. Species
    Onestripe wormfish
    Gunnellichthys pleurotaenia Bleeker, 1858
  8. Synonyms
    Gunnelichthys pleurotaenia Bleeker, 1858
    Taenioides gertrudae Fowler, 1925

Care

Twoline Gobies are peaceful and can be kept with a variety of tank mates. They require an established tank with plenty of live rock for hiding and grazing. These gobies are not aggressive eaters, so care should be taken to ensure they receive enough food when housed with more boisterous fish. They primarily feed on small crustaceans and algae, and will accept a variety of prepared foods in the aquarium.

Reproduction

In the wild, Twoline Gobies are egg-layers, with the male guarding and aerating the eggs until they hatch. Breeding them in captivity can be challenging, and there is limited information on successful captive breeding practices for this species.

Habitat

Gunnellichthys pleurotaenia is native to the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific. They are typically found in lagoons and on outer reef slopes, often at depths ranging from 1 to 30 meters (3 to 100 feet). In the aquarium, they appreciate a similar environment with plenty of rockwork and moderate to strong water flow.