Common name: Yellow-eyed comb-tooth

Scientific name: Ecsenius melarchus McKinney & Springer, 1976
Blenny

General information

The Midnight Blenny, scientifically known as Ecsenius melarchus, is a small, captivating fish that adds a touch of elegance to any reef aquarium. Its sleek, dark body and active demeanor make it a favorite among aquarists. This species is part of the Blenniidae family, which is known for its diverse and colorful members.

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 Adapts well to aquarium life
Diet
Herbivore Prefers algae-based foods
Social
Solo Territorial, best kept alone
Reefsafe
Yes
Aggression
Semi aggresive May nip at conspecifics
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
    Yellow-eyed comb-tooth
    Ecsenius melarchus McKinney & Springer, 1976

Care

Midnight Blennies are hardy and adaptable, making them suitable for both beginner and experienced hobbyists. They thrive in well-established aquariums with plenty of live rock for grazing and hiding. These blennies are herbivores, primarily feeding on algae. Providing a varied diet that includes quality marine algae and algae-based foods will help maintain their health and coloration.

Reproduction

In the home aquarium, breeding Midnight Blennies can be a challenge. They are oviparous, with males often establishing territories and courting females by performing elaborate displays. If successful, the female will lay eggs in a secure location, which the male then guards and tends to until they hatch.

Habitat

Ecsenius melarchus is native to the Indo-Pacific region. It is commonly found in shallow, coral-rich environments and often seen darting among the crevices and overhangs of the reef. These blennies prefer areas with strong water movement and ample natural food sources.