Reeflings

Common name: Grey moray

Scientific name: Gymnothorax nubilus (Richardson, 1848)

General information

The Dusty Moray, also known as the Yellow-edged Moray or Yellow-margin Moray, is a species of moray eel found in coral reef environments. With its distinct yellow margins on the dorsal and anal fins, Gymnothorax nubilus is a striking presence in any marine aquarium. This species can grow quite large, often reaching lengths of over a meter in the wild.

Moray eels have a unique hunting method, using a second set of jaws located in their throat called pharyngeal jaws to capture and pull prey into their digestive system. This fascinating adaptation is a prime example of evolutionary specialization.

Details

Recommended minimum tank volume
300 liter (79 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 7.8 to 8.4
Average size
75 cm (2′6″)
Care level
Moderate to easy Requires hiding spots
Diet
Carnivore Prefers live or frozen food
Social
Solo Territorial, best kept alone
Reefsafe
No May eat small fish/inverts
Aggression
Semi aggresive Can be aggressive to tankmates
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Eels
    Anguilliformes
  5. Family
    Moray Eels
    Muraenidae
  6. Genus
    Moray Eels
    Gymnothorax
  7. Species
    Grey moray
    Gymnothorax nubilus (Richardson, 1848)
  8. Synonyms
    Gymnothorax eupterus (Günther, 1870)
    Muraena euptera Günther, 1870
    Muraena nubila Richardson, 1848
    Muraena nubulus Richardson, 1848

Care

Dusty Morays require a large and well-structured aquarium to thrive, with plenty of hiding places to mimic their natural reef habitat. They are carnivorous and should be fed a varied diet of meaty foods such as fish, squid, and crustaceans. It's important to feed them using tongs to avoid accidental bites, as they have poor eyesight and rely heavily on their sense of smell.

Reproduction

In the wild, moray eels are solitary creatures and come together only to breed. Little is known about their breeding habits in the wild, and breeding in captivity is rare. They are oviparous, with females releasing eggs that are then fertilized externally by the male.

Habitat

Gymnothorax nubilus is typically found in the Indo-Pacific region, from East Africa to the Hawaiian Islands, and from Japan to Australia. They prefer coral reefs and rocky crevices at depths ranging from shallow waters to about 150 feet.