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FishMarineIntermediate

Spotted Moray

Gymnothorax moringa

The spotted moray is an iconic Atlantic reef dweller featuring a robust body. Extremely hardy, it requires deep, secure caves and a meticulously sealed canopy to entirely prevent any escape attempts.

Taxonomy

Class:Actinopteri

Order:Anguilliformes

Family:Muraenidae

Subfamily:Muraeninae

Genus:Gymnothorax

Species:Gymnothorax moringa

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Water Temperature

22 - 28 °C

pH Value

8.1 - 8.4

Water type

Marine

Tank level

Bottom

Adult size

100 cm

Minimum tank volume

500 L

Minimum group

>= 1

Species description

Geographical Origin and Habitat: Commonly found throughout the tropical and subtropical rocky reefs of the Western Atlantic Ocean, hiding deep inside crevices and dark caves from where it monitors the surrounding water.

Taxonomy and Morphology: Belongs to the Muraenidae family. It has a thick, muscular body, a tapered head with a white snout, and sharp, backward-pointing teeth. Features a robust, snake-like body lacking pectoral and pelvic fins. The skin is thick and covered with protective mucus, while the jaws are lined with long, sharp, backward-pointing teeth designed to grip slippery prey.

Social Behavior: A nocturnal and solitary predator. It stays in holes during the day, showing territorial behavior and potentially biting if hand-fed or cornered. A solitary and primarily nocturnal predator. It spends daylight hours concealed in rockwork, emerging at night to hunt fish and crustaceans using its highly acute sense of smell.

Coloration and Sexual Dimorphism: Body is pale yellow or cream-colored, heavily covered in dark brown to black spots of various sizes. Sexual dimorphism is not noticeable. The body has a white, yellowish, or cream background densely covered with small dark brown to black spots, forming a complex camouflage pattern. There is no visible sexual dimorphism.

Care, breeding and tankmates

Aquarium Setup: Demands a large aquarium of at least 120 gallons with sturdy rock structures. Caves must be wide enough to accommodate its full body coil. Requires a large, secure aquarium with a heavy, tight-fitting lid as they are notorious escape artists. Rockwork must be stable and secure to prevent collapse from the eel's powerful body movements.

Diet and Feeding: Strictly carnivorous. Offer squid, krill, raw shrimp, and silversides. Feed two times per week using feeding tongs, never feed by hand. Strictly carnivorous. Feed using feeding tongs to offer chunks of fresh or frozen seafood such as shrimp, squid, clam, and whole silversides. Do not feed by hand to avoid severe accidental bites.

Water Quality: Needs stable marine conditions, with a temperature between 22 and 28 degrees Celsius, pH 8.1-8.4, and efficient protein skimming. Heavy filtration is mandatory to process the high waste load of this carnivore. Utilize an oversized protein skimmer, and keep water temperature between 23-26°C with pH at 8.1-8.4.

Compatibility and Cohabitation: Strictly carnivorous. Offer squid, krill, raw shrimp, and silversides. Feed two times per week using feeding tongs, never feed by hand. Should only be housed with large, robust fish that cannot fit into its mouth. Invertebrates like crabs and ornamental shrimp will be quickly consumed and should not be kept in the same tank.

Aquarium Breeding: Keep only with large tankmates like large angels, tangs, or triggerfish. Crabs, shrimp, and small fishes will be consumed. Captive breeding is not documented or feasible in home aquariums due to their complex life cycle, which includes a long pelagic leptocephalus larval stage floating in open ocean currents.

Risks and Diseases: High risk of escaping through any small opening in the tank hood. Prone to bacterial skin infections if kept in poor water conditions. Generally disease-resistant and very hardy. The main health risks include skin abrasions from unstable rockwork and injuries sustained during escape attempts from unsecured tanks.

Geographic Origin and Distribution

Commonly found throughout the tropical and subtropical rocky reefs of the Western Atlantic Ocean, hiding deep inside crevices and dark caves from where it monitors the surrounding water.

Origin

Tropical oceans and reefsExtra-Amazon South AmericaNorth America

Fish profile

Temperament: Semi-aggressive
Diet: Omnivore
Sex ratio: Solitary
Feeding frequency: Twice daily
Bioload: This species generates an exceptionally heavy bioload, rapidly accumulating waste in the system. An oversized filtration setup with a powerful protein skimmer is the absolute minimum requirement. Without diligent and massive water changes, nutrient levels can quickly become toxic to the tank inhabitants.
Flow: Stagnant
Reproduction: Oviparous
Compatibility & tankmates: As a highly effective ambush predator, this fish will eagerly consume any tank mate small enough to fit in its mouth. It is strictly compatible only with large, robust fish that cannot be swallowed. Great care must be taken when introducing new fish, as they may be seen as a sudden meal.
Tank level: Bottom

FishBase

Window to the official scientific data of the species

Data synced on: 06/15/2026

Scientific Parameters & Models

Trophic level: 3.5

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

Related species

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Variants and close relatives

Same atlas type, nearby scientific identity, genus, or family.

Painted moray

Gymnothorax pictus

Species description

Care, breeding and tankmates