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FishintermediateFreshwater

Ornate Bichir

Polypterus ornatipinnis

AnimaliaChordataActinopterygiiPolypteriformesPolypteridae

📍 Congo Basin & East Africa

Ask Finn

The most strikingly patterned bichir — bold black reticulations on a yellow-cream body with striking dorsal finlets. Ancestral fish with a functional lung; can breathe air. Nocturnal predator that eats tankmates small enough to swallow.

Size18"
Min Tank90g
semi-aggressive
Zonebottom

Care Guide

Diet

Ornate bichirs are strict carnivores requiring live or frozen prey such as bloodworms, brine shrimp, small fish, and insect larvae. Feed 2-3 times weekly, offering portions they can consume in a few minutes. They may eventually accept high-quality sinking carnivore pellets, but live/frozen foods should remain the dietary staple.

Behavior

Nocturnal and reclusive, ornate bichirs spend daylight hours hiding among plants and décor, becoming active hunters at night. They are semi-aggressive predators that will consume any fish small enough to swallow, including small tetras and shrimp. They possess a functional lung and occasionally surface to gulp air, a normal behavior.

Breeding

Breeding in captivity is extremely rare and difficult, with few documented successes in the aquarium hobby. They require very large tanks, specific water conditions, and pairs may not spawn reliably even under ideal conditions. Most specimens in the hobby are wild-caught, making captive breeding impractical for most aquarists.

Common Diseases

Ich (Ichthyophthirius multifiliis)

Symptoms

White spots on body and fins, scratching against décor, labored breathing

Treatment

Raise temperature to 28-30°C, perform 25% water changes daily, use aquarium salt (1 tsp per 5 gallons) or ich medication; treat for 10-14 days

Fin Rot

Symptoms

Frayed or deteriorating fin edges, discoloration at fin bases, lethargy

Treatment

Improve water quality with frequent partial water changes, remove sharp décor, use antibacterial medication if severe; ensure pristine tank conditions

Bacterial Infection

Symptoms

Open sores, cloudy eyes, loss of appetite, fin damage, behavioral changes

Treatment

Perform 50% water change immediately, treat with broad-spectrum antibiotic medication, maintain optimal water parameters and temperature

Parasitic Infection

Symptoms

Excessive scratching, visible parasites on body, weight loss, clamped fins

Treatment

Use anti-parasitic medication as directed; quarantine if possible; maintain excellent water quality and perform frequent partial water changes

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Quick Facts

pH
6.5–7.5
diet
carnivore/live or frozen prey
maxSize
18 inches
minTankSize
90 gallons
temperature
77–82°F (25–28°C)

Temperature

77–82°F

25–28°C

Stats

Community tips0
Kept by0 hobbyists