Polypterus ornatipinnis (7–8cm) – a stunning, prehistoric bichir with ornate fins and armored body. Perfect for advanced aquarists with large freshwater tanks.

The Polypterus ornatipinnis, also known as the Ornate Bichir, is a remarkable freshwater fish famous for its prehistoric appearance, striking fin pattern, and armored scales. At 7–8 cm when sold (juvenile), this species can grow to an impressive 40–50 cm (16–20 inches) in captivity, making it suitable only for large aquariums and experienced hobbyists.

This bichir species is celebrated for its unique dorsal finlets with eye-catching markings, elongated body, and excellent hardiness, making it a fascinating centerpiece for collectors who appreciate ancient fish species.

✅ Key Features

• Size: 7–8 cm juvenile; adults reach 40–50 cm

• Temperament: Generally peaceful but territorial with conspecifics

• Care Level: Moderate to advanced

• Lifespan: 10–15 years with proper care

• Special Trait: Multiple dorsal finlets with ornate markings and heavily armored body

Care Guide for Polypterus ornatipinnis

✅ Tank Requirements

• Minimum Tank Size: 250 liters (65 gallons) for juveniles; 500+ liters recommended for adults

• Aquascape: Provide soft sandy substrate, driftwood, and plenty of hiding places

• Lighting: Low to moderate lighting mimics natural habitat

• Cover: Secure lid is essential as bichirs can jump

Tip: Use subdued lighting and lots of cover to reduce stress and encourage natural behavior.

✅ Water Parameters

• Temperature: 24°C – 28°C (75°F – 82°F)

• pH Level: 6.5 – 7.5

• Water Hardness: 5 – 20 dGH

• Filtration: Efficient filtration with moderate water flow

• Water Changes: 25–30% weekly to maintain water quality

✅ Feeding Habits

Polypterus ornatipinnis is a carnivorous bottom feeder with a strong appetite.

• Recommended Diet:

  • Live or frozen foods (bloodworms, earthworms, shrimp, small fish)

  • High-quality carnivore pellets

  • Occasionally offer sinking pellets and meaty treats

Feed once daily, preferably in the evening or at night when they are most active.

✅ Tank Mates

This species can be territorial with its own kind but usually peaceful with other species.

Ideal Tank Mates:

• Large peaceful cichlids

• Other bichirs (with ample space)

• Large catfish species (Plecos, Synodontis)

• Silver Dollars

Avoid small fish that may be seen as prey and aggressive species that may harass the bichir.

✅ Behavior & Breeding

• Behavior: Nocturnal, shy during the day but active at night

• Breeding: Rare and difficult in captivity

Why Choose Polypterus ornatipinnis?

• Stunning prehistoric look with ornate dorsal fins

• Hardy and adaptable for experienced hobbyists

• Captivating behavior and impressive size

• Excellent centerpiece fish for large freshwater aquariums

✅ Ideal for advanced aquarists with large tanks and biotope setups
✅ A unique and striking species for any exotic fish collection