Common Name: Pom Pom Knifefish

Scientific Name: Papyrocranus afer

Other Names: Arowana Knifefish, Reticulate Knifefish, Marbled Knifefish

The Pom Pom Knifefish is a stunning freshwater species known for its elongated, knife-like body and unique undulating swimming motion. Its elegant appearance, combined with its mesmerizing swimming style, has made it a favorite among advanced aquarium enthusiasts.

Habitat and Distribution: Papyrocranus afer originates from West Africa, particularly in areas around the Congo River Basin. They naturally inhabit soft, acidic waters of slow-moving streams, rivers, and flooded forest areas. Their environment is typically characterized by dense vegetation and submerged roots and logs, which offer shelter and protection.

Size and Lifespan: The Pom Pom Knifefish can reach lengths of up to 20 inches (50 cm) when fully grown. With proper care and a well-maintained environment, they can live for around 8-10 years in captivity.

Diet and Behavior: Being a nocturnal predator, the Pom Pom Knifefish feeds on smaller fish, insects, and invertebrates in the wild. In captivity, they can be fed a diet of meaty foods, including live or frozen fish, brine shrimp, and high-quality pellets. They are generally peaceful but can be shy, especially during the day. They tend to become more active during the evening and night.

Breeding and Reproduction: There's limited information available about their breeding habits both in the wild and in captivity. Breeding the Pom Pom Knifefish in a home aquarium is considered challenging and is rarely achieved.

Aquarium Care and Tank Requirements: Given their potential size and need for free-swimming space, a tank of at least 125 gallons is recommended for adult specimens. They require a dimly lit environment, replicating their natural habitat, with plenty of hiding spots made from rocks, caves, and driftwood. Excellent filtration and regular water changes are essential as they can be sensitive to water quality changes.

Ideal Tank Mates: They're best suited with other peaceful, similarly-sized fish. Aggressive or overly active fish might stress them out. Small fish might become prey, so it's essential to choose tankmates wisely. Possible companions include larger tetras, catfish, and some types of cichlids.

Difficulty Level: Intermediate to Advanced. Their specific needs and sensitivity to water conditions mean they might not be ideal for beginners.

Water Parameters:

• Temperature: 75-82°F (24-28°C)
• pH: 6.0-7.0
• General Hardness (GH): 5-15 dGH
• Carbonate Hardness (KH): 3-10 dKH
• Ammonia: 0 ppm
• Nitrite: 0 ppm
• Nitrate: <20 ppm

Additional Information:

• The Pom Pom Knifefish has an electric organ, but it's primarily used for navigation and communication, not defense.
• They possess a unique ability to move both forwards and backwards seamlessly, thanks to their anal fin that stretches from belly to tail.
• A calm and tranquil environment, replicating their natural habitat, will help in keeping this species stress-free and healthy. Regular water monitoring is essential to ensure their well-being.