Saltcorner
By Bob Goemans
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Gymnothorax

Gymnothorax breedeni

McCosker & Randall, 1997

Blackcheek Moray, Masked Moray

Likely Reef Tank Suitable

Likely Fish-Only Tank Suitable

Range: Indo-West Pacific Ocean: Red Sea, Maldives, Seychelles, South Africa, Christmas Islands, Papua, New Guinea, and Palau.

Size: 40 inches (100 cm)

Natural Environment: Inhabits seaward reefs and oceanic islands at depths at about 10 - 100 feet (3 – 30 m) and stays under rocks and/or in caves during daytime and hunts prey during evening hours when it feeds mainly on small fishes and octopuses. Often found in the same areas as Anthias.

General Husbandry: Rarely seen in the trade, having a brownish body with a black patch under the eyes.

Best maintained in a dimly lit aquarium having live rock, hiding places/caves, and tankmates large enough not to be eaten.

As to diet, fresh fish and/or crustacean flesh impaled on a long feeding stick and waved near its head, which usually sticks out of a hiding area, will entice it to grab the food and should be offered twice weekly.

Taxonomy:

    Order: Anguilliformes

    Suborder: Muraenoidei

    Family: Muraenidae

    Subfamily: Muraeninae

    Genus: Gymnothorax

FYI: Avoid hand feeding!

Will bite divers when they get too close!

One per aquarium.

May be difficult to get feeding, if so, try feeding live ghost/grass shrimp and/or small crabs, e.g., fiddler crabs.

Aquarium must be covered, as they can get out of the aquarium through very small openings. Its an escape artist.

Rockwork in the aquarium should be quite stable, as they can undermine rock structures and cause their collapse.

Experience Level: Intermediate

Temperament: Aggressive

Diet: Carnivore

Coral Safe: Yes

Fish Safe: With caution

Invertebrate Safe: With caution

Acclimation Time: 30 minutes+

Aquarium Environment: Reef or fish-only aquarium

Tankmates: Aggressive

Minimum Tank Size: 100 gallons

Temperature Range: 74 - 82°F (23 – 28°C)

Specific Gravity: 1.020 - 1.026

pH: 8.0 - 8.5

 Gymnothorax breedeni (Blackcheek Moray, Masked Moray)
Photo © Andrea & Antonella Ferrari
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