Common name: Twilight Fangblenny

Scientific name: Meiacanthus phaeus Smith-Vaniz, 1976

General information

The Blackline Fangblenny, scientifically known as Meiacanthus phaeus, is a distinctive and intriguing species popular among marine aquarists. This species is part of the Blenniidae family, known for their elongated bodies and bold personalities. The Blackline Fangblenny is particularly noted for its striking coloration, with a deep blue to black body contrasted by a vivid yellow stripe that runs from the eye to the tail, giving it a dramatic appearance in any aquarium setting.

Details

Recommended minimum tank volume
75 liter (20 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
11 cm (4½″)
Care level
Moderate to easy Handle with care due to venom
Diet
Omnivore Varied diet, incl. mysis shrimp
Social
Pair Pairs or small groups
Reefsafe
Yes
Aggression
Semi aggresive May nip fins of slow fish
Captive bred
Yes Bred in captivity, but rare

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Blennies
    Blenniidae
  6. Genus
    Fang Blennies
    Meiacanthus
  7. Species
    Twilight Fangblenny
    Meiacanthus phaeus Smith-Vaniz, 1976

Care

Caring for Blackline Fangblennies requires attention to their specific needs. They thrive in well-established aquariums with plenty of live rock for hiding and grazing on microalgae. These fish are generally peaceful but can be territorial towards their own kind, so it's best to keep them singly unless the tank is large enough to support multiple territories. They are omnivores, and their diet should include a variety of foods such as marine flakes, frozen or live brine shrimp, mysis shrimp, and algae-based foods to maintain their health and coloration.

Reproduction

In the wild, Blackline Fangblennies are oviparous, with females laying eggs that are then fertilized by the male. In the aquarium, breeding these fish can be challenging, but it is possible with a well-maintained environment and careful monitoring. The eggs are adhesive and will be attached to the substrate or decor within the tank. Once hatched, the larvae will require small, nutritious food sources like rotifers or copepods.

Habitat

Meiacanthus phaeus is found in the Western Pacific, particularly around the Philippines and Indonesia. They inhabit shallow reefs and lagoons, often seeking refuge among stony corals and rubble. In the aquarium, replicating their natural environment with a variety of hiding places and stable water conditions is essential for their well-being.