Common name: Nalolo blenny

Scientific name: Ecsenius nalolo Smith, 1959
Wild Wonders of TaiwanNalolo Blenny fish sitting on the reef, side view. Small fish with brownish coloring.

General information

The Nalolo Blenny, scientifically known as Ecsenius nalolo, is a charming and colorful addition to any reef aquarium. This species is part of the combtooth blennies and is recognized for its distinctive coloration and behavior. The Nalolo Blenny has a slender body with a mix of blue and orange hues, and a characteristic black spot on its dorsal fin.

Blennies from the genus Ecsenius are known for their algae-eating habits, making them beneficial for controlling algae growth in the aquarium. They are also appreciated for their personable demeanor, often becoming a favorite among aquarists for their curious and interactive nature.

Details

Recommended minimum tank volume
75 liter (20 gallons)
Salinity
S.G. 1.022 to 1.025
Temperature
24 to 26 °C (75 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
10 cm (4″)
Care level
Moderate to easy Prefers complex rockwork
Diet
Herbivore Algae grazer in nature
Social
Solo Can be territorial with conspecifics
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
    Nalolo blenny
    Ecsenius nalolo Smith, 1959

Care

Nalolo Blennies are hardy fish that adapt well to life in captivity. They require an aquarium with plenty of live rock for grazing on microalgae and for hiding. These blennies are generally peaceful but can be territorial towards other blennies. It's important to provide a varied diet that includes marine algae, vegetable matter, and meaty foods to ensure proper nutrition.

Reproduction

In the wild, Ecsenius nalolo are known to be oviparous, with males guarding and aerating the eggs until they hatch. Breeding them in captivity can be challenging, and hobbyists aiming to do so should provide a stress-free environment with optimal water conditions.

Habitat

The Nalolo Blenny is found in the Western Pacific, from Indonesia to the Solomon Islands, and north to the Ryukyu Islands. They inhabit shallow coral reefs and rocky outcrops, often seen perching on coral heads or nestled in crevices.