Back to atlas
FishMarineIntermediate

Encyclopaedia

Painted Moray

Gymnothorax pictus

Painted Moray: a large snake-like marine eel from the Muraenidae family, known for its fine gray and brown speckled pattern, requiring a very large tank.

Family
Muraenidae
Origin
Indo-Pacifico
Origin
Tropical oceans and reefsExtra-Amazon South America
Tank use
Used in 0 tanks

Share

Species challenges
Water Temperature

22 °C - 28 °C

pH Value

8.1 - 8.4

Water type

Marine

Tank level

Bottom

Adult size

140 cm

Species description

Geographical Origin and Habitat: Widely distributed in the Indo-Pacific, often found in shallow reef flats, lagoons, and tide pools, sometimes entering extremely shallow water.

Taxonomy and Morphology: A member of the Muraenidae family. It features a thick, muscular body, smooth scaleless skin, small eyes, and strong jaws with rows of teeth.

Social Behavior: Solitary and bottom-dwelling. It hunts crustaceans and small fishes, and is known for its high activity compared to other moray species.

Coloration and Sexual Dimorphism: Body color ranges from light gray to white, peppered with thousands of fine dark brown speckles. Sexual dimorphism is not visually apparent.

Care, breeding and tankmates

Aquarium Setup: Needs a massive tank of at least 150 gallons with strong, stable rock caves. Provide a sandy substrate as they frequently crawl along the bottom.

Diet and Feeding: Carnivorous diet consisting of crabs, shrimp, clams, and fish chunks. Use feeding tongs and feed adult specimens once or twice weekly.

Water Quality: Requires tropical water temperatures (22-28°C), standard marine salinity, and a highly efficient filtration system to manage waste production.

Compatibility and Cohabitation: Keep only with large species such as groupers or large triggerfish. Avoid keeping any ornamental crabs or shrimp as they are natural prey.

Aquarium Breeding: Not recorded in captivity due to space limitations and their pelagic egg-scattering behavior which is impossible to mimic at home.

Risks and Diseases: Extreme escape risk; they can easily push through loose lids. Physical injuries from sharp rock edges can develop into secondary skin infections.

Fish profile

Tank level
Bottom
Adult size
140 cm
GH
n/a
KH
n/a
TDS
n/a
Conductivity
n/a

Ecological Estimates & Biological Models

Trophic level
3.5

Image gallery

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

Related species

Other recommended species with similar care requirements and water parameters.

Last updated: 06/13/2026