Emperor Tetra

Nematobrycon palmeri, the Emperor Tetra, comes from Colombia's San Juan and Atrato rivers. Males develop distinctive elongated central tail filaments and display vivid iridescent blue-green flanks with a bold dark lateral stripe. The species is more adaptable than many soft-water tetras, tolerating a broad pH range while remaining strikingly beautiful. A regal centrepiece for planted community aquariums.

Water: 23–28°C, pH 5.0–7.8, soft to moderately hard; very adaptable. Tank: 60 L minimum; planted aquarium with open swimming lanes; moderate current. Feeding: Accepts quality flake, pellets, frozen brine shrimp and bloodworm readily. Behaviour: Peaceful schooling species; keep 6+; males may spar elegantly without causing injury. Compatibility: Excellent with most small peaceful community fish; avoid very small nano species.