Black Palmeri

The Black Palmeri, commonly known as the Black Emperor Tetra, is a graceful and elegant freshwater fish admired for its deep black to smoky body coloration and subtle iridescent sheen. A darker variant of the Emperor Tetra (Nematobrycon palmeri), this fish stands out with its elongated fins, distinctive tail shape, and calm yet active swimming style. Males are especially attractive, displaying extended finnage and more intense coloration. Their peaceful nature and striking appearance make them an excellent choice for planted aquariums and community setups.

Black Palmeri (Black Emperor Tetra) – Overview, Care & Compatibility Description The Black Palmeri, commonly known as the Black Emperor Tetra, is a graceful and elegant freshwater fish admired for its deep black to smoky body coloration and subtle iridescent sheen. A darker variant of the Emperor Tetra (Nematobrycon palmeri), this fish stands out with its elongated fins, distinctive tail shape, and calm yet active swimming style. Males are especially attractive, displaying extended finnage and more intense coloration. Their peaceful nature and striking appearance make them an excellent choice for planted aquariums and community setups. Water Parameters Maintaining stable, slightly acidic to neutral water is ideal: Temperature: 23°C – 27°C pH Level: 6.0 – 7.5 Water Hardness: 3 – 12 dGH Tank Size: Minimum 20–30 gallons (75–115 liters) Filtration: Gentle to moderate flow Water Changes: 20–30% weekly Care & Maintenance Black Palmeri are relatively easy to care for: Keep in groups of at least 6–8 fish to reduce stress and encourage natural behavior Provide a well-planted tank with shaded areas and open swimming space Use soft lighting to enhance their dark coloration Maintain stable water parameters, as they are sensitive to sudden changes Feed a varied diet including high-quality flakes, micro pellets, and small live or frozen foods like daphnia and brine shrimp Ensure good filtration while avoiding strong currents Behavior & Temperament Peaceful and social schooling fish Males may display mild territorial behavior among themselves Active swimmers, mostly in mid-water levels Calm demeanor makes them suitable for community tanks Compatibility Black Palmeri are ideal for peaceful community aquariums: Suitable Tank Mates: Other small tetras Rasboras Corydoras catfish Dwarf cichlids (Rams, Apistogramma) Small peaceful gouramis Tank Mates to Avoid: Aggressive or large fish Fin-nipping species Very small fry (may be eaten) Pro Tips Keep in larger groups for better color and confidence Use dark substrate and background to enhance their appearance Maintain a calm environment with stable conditions Provide a balanced diet to support coloration and health