The Fire Eel (scientific name: Mastacembelus erythrotaenia) is a fascinating and unique freshwater fish popular among aquarium enthusiasts. Key Facts About Fire Eels: Appearance: They are part of the spiny eel family and possess an elongated, eel-like body with a narrow, pointed snout. Their dorsal fin is preceded by numerous spines, which give the family its name. Habitat: Native to Southeast Asia, Fire Eels inhabit slow-moving rivers, swamps, and floodplains. They are bottom-dwellers that often bury themselves in the substrate. Care: Tank Size: Require a large aquarium due to their potential adult size (up to 3 feet or 91 cm). A minimum of 75 gallons, with 120 gallons being ideal, is recommended for an adult. Substrate: Need a soft substrate (like sand) for burrowing. Temperament: Generally peaceful but predatory; may eat smaller fish. Diet: Primarily carnivorous, feeding on insects, worms, crustaceans, and smaller fish in the wild. In captivity, they can be fed live or frozen foods like earthworms, blackworms, bloodworms, and krill. Lifespan: Can live for 10 years or more in captivity. Intelligence: Known to be intelligent and can recognize their owners, sometimes even begging for food. In Summary: Fire Eels are captivating creatures with unique needs. They require a large tank with a soft substrate and are best suited for experienced aquarists who can meet their specific requirements.