Common name: Volcano triplefin

Scientific name: Helcogramma vulcana Randall & Clark, 1993

General information

The Vulcan Triplefin, Helcogramma vulcana, is a small and colorful fish species belonging to the family Tripterygiidae. It is a recently described species, having been identified and named in 2019. This species is known for its striking coloration, with males displaying vibrant hues during the breeding season, which can add a splash of color to a marine aquarium.

Details

Recommended minimum tank volume
75 liter (20 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8 to 8.4
Average size
6 cm (2½″)
Care level
Moderate to easy Prefers complex rockwork
Diet
Carnivore Enjoys small crustaceans
Social
Pair Pairs are harmonious
Reefsafe
Yes
Aggression
Peaceful
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Triplefin blennies
    Tripterygiidae
  6. Genus
    Triplefin Blennies
    Helcogramma
  7. Species
    Volcano triplefin
    Helcogramma vulcana Randall & Clark, 1993

Care

Vulcan Triplefins are relatively hardy and can adapt to life in a well-established aquarium. They require a tank with plenty of live rock and crevices for hiding and foraging. These fish are micro-predators, feeding on small invertebrates, so a varied diet of small live or frozen foods like copepods, brine shrimp, and mysis shrimp is essential for their health.

Reproduction

Like many triplefin species, Helcogramma vulcana exhibits a polygynous mating system where males may mate with multiple females. They are known to guard their eggs until hatching. In an aquarium setting, breeding Vulcan Triplefins can be challenging due to their specific reproductive behaviors and requirements for egg care.

Habitat

Helcogramma vulcana is found in the Western Pacific, specifically around Indonesia. They inhabit shallow, coastal reef environments where they can be seen darting among coral rubble and rocky substrates. In the wild, they are typically found at depths ranging from the intertidal zone to about 20 meters.