Polypterus ornatipinnis, the Ornatipinnis bichir, is a beautifully patterned prehistoric fish perfect for large, well-maintained freshwater aquariums.

🐟 Polypterus ornatipinnis – Product Description

The Polypterus ornatipinnis, commonly known as the Ornatipinnis bichir, is a striking species native to the Congo River Basin. Known for its elegant, ornate dorsal finlets and distinct patterning, this bichir is a prized choice among experienced aquarium enthusiasts who appreciate its prehistoric lineage and unique appearance. Growing up to 18–22 inches (45–55 cm), the Ornatipinnis bichir combines an impressive size with hardy behavior, making it an excellent centerpiece for large freshwater tanks.

🌊 Water Conditions

• Temperature: 75–82°F (24–28°C)

• pH Range: 6.0 – 7.5 (slightly acidic to neutral)

• Hardness: 5–15 dGH

• Tank Size: Minimum 100 gallons recommended for adult fish

• Filtration: Moderate to strong filtration with gentle water flow preferred

• Substrate: Fine sand or smooth gravel to protect barbels and soft ventral skin

• Tank Setup: Plenty of hiding spots with driftwood, caves, and plants; subdued lighting to mimic natural habitat

🍽️ Feeding Habits

• Diet: Carnivorous and opportunistic feeders

  • Feed a variety of live, frozen, or prepared foods such as bloodworms, shrimp, earthworms, and carnivorous pellets

  • Capable of eating small fish but caution advised to avoid predation in community tanks

• Feeding Frequency: 1–2 times daily, best offered during twilight or nighttime hours when most active

• Feeding Tips: Place food near the bottom of the tank or use feeding tongs to encourage natural hunting behavior

🐠 Tank Mates

• Compatible Tank Mates:

  • Larger, peaceful to semi-aggressive fish such as large barbs, gouramis, and robust catfish

  • Other bichirs of similar size and temperament can be housed together if tank is large enough

• Avoid:

  • Small fish that may be viewed as prey

  • Highly aggressive fish that may stress or attack the Ornatipinnis bichir

  • Overcrowding to minimize territorial disputes

🛠️ Care and Behavior

• Temperament:

  • Semi-aggressive and territorial, particularly with conspecifics or similar species

  • Mostly nocturnal or crepuscular but may exhibit daytime activity in mature tanks

  • Best housed singly or in very spacious setups with conspecifics

• Behavior:

  • Equipped with a modified swim bladder allowing atmospheric air breathing; surface access is essential

  • Slow-moving and curious, often exploring their environment and hiding among décor

• Tank Maintenance:

  • Weekly water changes (25–40%) to maintain pristine water quality

  • Regular monitoring of ammonia and nitrite to avoid toxic buildup

• Health:

  • Generally hardy but sensitive to poor water quality and sudden parameter changes

  • Proper diet and clean environment reduce risk of infections and stress

📌 Summary

The Polypterus ornatipinnis is an elegant and fascinating prehistoric fish that adds both beauty and intrigue to large freshwater aquariums. Its distinctive fin structure, armored body, and adaptable nature make it a prized species for experienced aquarists. While relatively hardy, this bichir requires ample space, stable water conditions, and compatible tank mates to thrive. Ideal for species-specific or large community setups, the Ornatipinnis bichir offers a captivating glimpse into ancient aquatic ecosystems and a rewarding challenge for dedicated hobbyists.