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FishhardFreshwater

Bronze Featherback

Notopterus notopterus

Also known as Common Featherback, Asian Featherback

Animalia›Chordata›Osteoglossiformes›Notopteridae

The Bronze Featherback is a nocturnal, knife-like fish native to Southeast Asia known for its undulating anal fin and peaceful demeanor. It grows to moderate size and requires spacious, well-planted tanks with plenty of hiding spots. This species is best suited for experienced aquarists due to its specific care requirements and sensitivity to water conditions.

Where it's from

Native to the An Lao, Ba, Bangpakong, Batang Hari and 56 other river basins

Vietnam, Thailand, Indonesia, India, Malaysia, Nepal, Pakistan, Myanmar (Burma) and 1 more

Recorded as introduced in Singapore

At a glance

Size
12 in
30 cm
Min tank
75 gal
284 L
Temp
75–82°F
24–28°C
pH
6.0-7.5
GH
71–143 ppm
4–8 dGH
Temperament
Peaceful
Swims
Middle
Lifespan
10-15 yrs

Ammonia 0 ppm and nitrate under 20 ppm.

Care

Diet

Bronze Featherbacks are carnivorous and prefer live or frozen foods such as small fish, shrimp, bloodworms, and insect larvae. Feed 2-3 times weekly with appropriately-sized prey items. They are nocturnal hunters and may refuse food during daylight hours.

Behavior

This species is primarily nocturnal and remains hidden during the day, becoming active at dusk. It uses its elongated anal fin to navigate through dense vegetation and obstacles with remarkable agility. Bronze Featherbacks are generally peaceful but may consume very small fish and should not be housed with tiny species.

Breeding

Breeding in captivity is extremely difficult and rarely achieved in home aquariums. They require very specific conditions including large tanks, precise water parameters, and seasonal temperature fluctuations. Professional breeding is limited, making captive-bred specimens uncommon.

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Common diseases 4Ich (Ichthyophthirius multifiliis), Fin Rot, Bacterial Infection, Parasitic Infection

Ich (Ichthyophthirius multifiliis)

Symptoms

White spots on body and fins, rapid breathing, lethargy, rubbing against objects

Treatment

Raise temperature to 28-30 C (82-86 F), perform water changes, use aquarium salt or ich medication; treat for 7-10 days

Fin Rot

Symptoms

Frayed or deteriorating fins, discoloration at fin edges, lethargy

Treatment

Improve water quality with frequent water changes, remove decaying food, use antibacterial medication if severe

Bacterial Infection

Symptoms

Open sores, cloudy eyes, loss of appetite, color fading, fin damage

Treatment

Perform 25-30% water changes daily, maintain pristine water conditions, use broad-spectrum antibiotic medication

Parasitic Infection

Symptoms

Excessive scratching, weight loss, visible parasites on gills, labored breathing

Treatment

Use anti-parasitic medication, perform water changes, quarantine affected fish, treat for 7-14 days as directed

Legality

No state or federal restrictions on record.

Not legal advice, and possibly incomplete or out of date. Rules vary by state and change over time; check with your state wildlife or agriculture agency before buying, keeping or shipping it.

The care information here is written with AI help, so it can contain mistakes. Spot one? Tell us and we'll fix it. Native range: Global Register of Introduced and Invasive Species (CC BY 4.0); Tedesco et al. 2017 (CC0).

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