Common name: Filamentous Blenny

Scientific name: Gobioclinus filamentosus (Springer, 1960)

General information

The Filamentous Blenny, scientifically known as Gobioclinus filamentosus, is a small, colorful fish that is a favorite among reef aquarium enthusiasts. This species is known for its distinctive long filamentous extensions on the dorsal fin, which can be quite eye-catching. The body coloration is typically a mottled brown with red spots, which provides excellent camouflage against the rocky reefs they inhabit.

Details

Recommended minimum tank volume
40 liter (11 gallons)
Salinity
S.G. 1.022 to 1.025
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
6 cm (2½″)
Care level
Moderate to easy Prefers caves and overhangs
Diet
Carnivore Enjoys small crustaceans
Social
Solo
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
    Labrisomid Blennies
    Labrisomidae
  6. Genus
    Goby Eel
    Gobioclinus
  7. Species
    Filamentous Blenny
    Gobioclinus filamentosus (Springer, 1960)
  8. Synonyms
    Labrisomus filamentosus Springer, 1960

Care

Filamentous Blennies are relatively easy to care for, provided their environment is well-structured with plenty of hiding places and rockwork. They are peaceful fish that can be kept with a variety of tank mates. However, care should be taken to ensure they are not housed with aggressive species that may harass or outcompete them for food. They are omnivores, feeding on a mix of algae and small invertebrates in the wild, so a varied diet in captivity is essential for their health.

Reproduction

In the wild, Filamentous Blennies are known to be oviparous, with males often guarding the eggs until they hatch. Breeding them in captivity can be challenging, but with the right conditions and a mature pair, it is possible to observe their fascinating reproductive behavior.

Habitat

Gobioclinus filamentosus is found in the Western Atlantic, from Florida and the Bahamas to Brazil, including the Gulf of Mexico and the Caribbean Sea. They prefer shallow, rocky reefs and are often seen darting in and out of crevices. Their ability to blend into their surroundings makes them both intriguing to watch and a challenge to spot at times.