Common name: Red-lined sleeper

Scientific name: Valenciennea immaculata (Ni, 1981)

General information

The Immaculate Goby, scientifically known as Valenciennea immaculata, is a small, peaceful fish that is well-suited for reef aquariums. It is known for its striking appearance, with a white body and a distinctive blue to grey stripe running from the eye to the caudal fin. This species is a member of the goby family, which is popular among aquarists for their interesting behaviors and compatibility with a wide range of tank mates.

Details

Recommended minimum volume
150 liter (40 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
12 cm (5″)
Care level
Moderate to easy Needs a sand bed for burrowing
Diet
Omnivore Enjoys a varied diet, incl. frozen foods
Social
Pair Pairs well, can be territorial
Reefsafe
Yes
Aggression
Peaceful
Captive bred
Yes Rarely bred in captivity
Conservation status
ExtinctThreatenedLeastConcern

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
    Sleeper Gobies
    Valenciennea
  7. Species
    Red-lined sleeper
    Valenciennea immaculata (Ni, 1981)
  8. Synonyms
    Eleotriodes immaculatus Ni, 1981
    Valencienna immaculata (Ni, 1981)

Care

Immaculate Gobies are sand sifters and play a beneficial role in the aquarium by aerating and cleaning the substrate. They require an aquarium with a thick sand bed and plenty of live rock for hiding. These gobies are generally hardy, but they do best in a stable, mature aquarium. They are omnivores and should be fed a varied diet of meaty foods and marine-based algae.

Reproduction

In the wild, Valenciennea immaculata forms monogamous pairs and spawns in burrows. In the aquarium, breeding is possible but challenging. The pair will lay eggs in a secure location, and the male typically guards the nest. Hobbyists interested in breeding should provide a stress-free environment with plenty of hiding places.

Symbiosis

While not known for a specific symbiotic relationship like clownfish and anemones, Immaculate Gobies do contribute to the overall health of the reef tank by sifting through the sand, which helps to prevent the buildup of detritus and aerates the substrate, benefiting other tank inhabitants.

Habitat

Valenciennea immaculata is found in the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific. They inhabit shallow lagoons and coastal reefs, often burrowing in sandy substrates. In the aquarium, replicating their natural environment with a sandy bottom and ample hiding spaces is key to their well-being.