Mystus tengara is a catfish of the family Bagridae. It originates from South Asia and inhabits river systems in Pakistan, India, Nepal, and Bangladesh.

Tank
from 250 L (66 gal)
Temperature
20 – 27 °C (68 – 81 °F)
Size in aquarium
8 – 10 cm (3.1 – 3.9 in)
Acidity
pH 6–7
Natural rangeRange on the map
  • Afghanistan
  • Bangladesh
  • India
  • Myanmar
  • Nepal
  • Pakistan

Tank conditions

Plan the tank stocking
Temperature
20 – 27 °C (68 – 81 °F)
Water pH
Slightly acidic (6) – Neutral (7)
Water dH
Soft (5) – Hard (15)
Water salinity
no salt (freshwater)
Size in aquarium
8 – 10 cm (3.1 – 3.9 in)
Lifespan
5 years
Temperament
Peaceful (regular)
Toward small fish
not a predator
Required aquarium volume
from 250 L (66 gal)
Lighting
dimmed
Substrate
any (no restrictions)
Water flow
none or stagnant (no flow)
Feeding
Sinking (any)
Keeping
Small group 3–4 individuals
  • Lifespan. A lifespan to expect under good care, not a measured value: it depends heavily on tank volume, water quality and diet — and for selectively bred forms, on their origin as well.
  • Toward small fish. Based on the Predators category in the catalog or the temperament in the species parameters. “A risk to small fish” means the species is not a predator by habit, yet will swallow any fish that fits in its mouth.
  • Required aquarium volume. This is a husbandry recommendation, not a measured value: the volume depends on the keeping mode (small group (3–4 individuals)), footprint, decor and tank mates.

Care and keeping

Description

In the wild, adults can reach up to 18 cm in length. In the aquarium, however, they usually remain much smaller, typically growing only to about 10 cm. The mystus tengara has an elongated, slender body with a slight hump on the back, which supports a tall dorsal fin. Its large fins and forked tail indicate an active lifestyle. The body is silver with a green and yellow sheen, marked by rows of dark horizontal stripes running from head to tail. It is nearly identical in appearance to its close relative, the striped mystus, and to most aquarists the two species look the same both in appearance and in their care requirements. Because of this, many suppliers do not always distinguish between them accurately and may use either name for both species.

Habitat

Mystus tengara is widespread throughout South Asia, including waters in Pakistan, India, Bangladesh, Nepal, Myanmar, and Afghanistan. In nature it inhabits various freshwater biotopes, ranging from still waters to flowing rivers in lowland and foothill areas.

Behavior and Compatibility

This species has a peaceful and calm temperament. These catfish prefer to stay in groups, so it is recommended to keep at least 3–4 individuals together. They get along well with many other peaceful fish of comparable size.

Care and Maintenance

For a small group, the minimum aquarium volume should be from 250 litres. Provide dense aquatic plants, driftwood, and other natural or artificial elements as hiding places. Mystus tengara prefers soft, slightly acidic water. Aim for little to no water flow. Choose a filter that does not create excessive water movement.

Diet

This is an omnivorous species that readily accepts most common prepared foods for aquarium fish.

Breeding and Reproduction

Breeding in the aquarium is difficult and typically requires pituitary injections to stimulate spawning. Spawning is either in pairs or groups, occurring at night in tanks of at least 200 litres with a substrate of fine-leaved plants or artificial spawning mops. The eggs develop for about 30 hours, after which the larvae hatch and begin feeding on live dust and brine shrimp nauplii a few days later.

Diseases

No specific species diseases have been documented. However, like most catfish, they are sensitive to water quality and salt content. Maintain stable water conditions and effective filtration to prevent bacterial infections of skin and fins, which can develop under poor sanitary conditions.

How to choose

When selecting individuals, check for intact fins and the absence of spots or ulcers on the body, as these fish can show intraspecific aggression. Healthy catfish should be active in the evening and have clear, transparent eyes. Be aware that mystus tengara has sharp spines in its fins, so handle it with care during transport and transfer.

Compatibility

There are no pair reviews for this species yet — check tankmates in the matcher.

All tankmates

Plants and this fish

Matching water does not mean the plant will stay intact.

Frequently asked questions

The essentials: size, tank volume, water parameters and care

How big does Mystus tengara get?

An adult reaches 8–10 cm in length. Plan the tank around the maximum size: the fish quickly outgrows a cramped setup.

What size aquarium does Mystus tengara need?

The recommended volume is 250 L. A smaller tank speeds up nitrate build-up and raises stress levels.

What water parameters does Mystus tengara need?

Temperature 20–27 °C, pH 6–7, hardness 5–15 dGH. Stability matters more than exact values: sudden swings are harder on the fish than a small deviation from the ideal.

How long does Mystus tengara live?

Around 5 years when kept properly. Lifespan depends directly on tank volume, water quality and a varied diet.

Is Mystus tengara aggressive?

Temperament: peaceful (regular). Keep this in mind when choosing tank mates.

How many Mystus tengara should be kept together?

Recommended setup: small group (3–4 individuals). Ignoring this is a common cause of stress and disease.

What does Mystus tengara eat?

Diet type: sinking (any). Feed small portions that are finished within a couple of minutes — overfeeding does more harm than underfeeding.

What is the scientific name of Mystus tengara?

The scientific name of the species is Mystus tengara, family Bagridae (naked catfishes). It also appears in the literature as: Macrones tengara, Mystus tengana, Mystus tengra.

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Other scientific names and conservation status

Other scientific names
Macrones tengara, Mystus tengana, Mystus tengra, Pimelodus tengara
Categories
Catfish
Conservation status
Least concernLC