Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Anguilliformes
- Family
- Anguillidae
- Genus
- Mastacembelus
- Species
- erythrotaenia
Habitat
Fire eels inhabit freshwater rivers, streams, and lakes in Southeast Asia, particularly in areas with sandy or muddy substrates and abundant vegetation. They prefer warm, tropical waters with slow to moderate currents, often found in the Mekong and Malay Peninsula regions. These environments provide cover and hunting opportunities in submerged roots and leaf litter.
Diet
Fire eels are carnivorous, feeding primarily on small fish, insects, worms, and crustaceans that they hunt at night. They use their elongated bodies to burrow into the substrate and ambush prey, often striking quickly with their toothy mouths. Feeding activity peaks during twilight hours when they are most active.
Behavior
Fire eels are primarily nocturnal, spending daylight hours hidden in burrows or under rocks to avoid predators. They are solitary and territorial, defending their space aggressively if threatened, but generally avoid confrontation. In captivity, they exhibit exploratory behavior, often rooting through substrate for food.
Conservation Status
Listed as Least Concern by IUCN.