Common name: Red Sea mimic blenny

Scientific name: Ecsenius gravieri (Pellegrin, 1906)

General information

Ecsenius gravieri, commonly known as Gravier's Blenny or Red Sea Mimic Blenny, is a small, colorful fish that is well-suited for reef aquariums. This species is known for its unique behavior of mimicking other blennies, particularly the Meiacanthus species, which are venomous. This mimicry serves as a defense mechanism against predators. Gravier's Blenny has a slender body with a combination of blue, yellow, and orange hues that make it a visually appealing addition to any tank.

Details

Recommended minimum tank volume
75 liter (20 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8.1 to 8.4
Average size
10 cm (4″)
Care level
Moderate to easy Prefers complex rockwork
Diet
Herbivore Grazes on algae
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
    Blennies
    Blenniidae
  6. Genus
    Blennies
    Ecsenius
  7. Species
    Red Sea mimic blenny
    Ecsenius gravieri (Pellegrin, 1906)
  8. Synonyms
    Ecsenius klausewitzi Lotan, 1970
    Salarias gravieri Pellegrin, 1906

Care

Gravier's Blenny is a hardy species that adapts well to life in captivity. They thrive in well-established aquariums with plenty of live rock for grazing and hiding. These blennies are herbivores, feeding primarily on algae. It's important to ensure a continuous supply of algae or vegetable-based foods to keep them healthy. They are peaceful fish but can be territorial towards other blennies.

Reproduction

In the wild, Ecsenius gravieri are oviparous, with males guarding and aerating the eggs until they hatch. Breeding them in captivity can be challenging due to their specific mating rituals and the need for pristine water conditions.

Habitat

Gravier's Blenny is endemic to the Red Sea. They are commonly found in shallow waters, often in and around coral reefs where they can easily blend in with their surroundings and find ample food sources.