Cyprinids (Cyprinidae)

Inle Danio

Devario auropurpureus

The Inle Danio, scientifically known as Devario auropurpureus, belongs to the family Cyprinidae. It takes its name from Inle Lake, where the bulk of its population lives. This fish is straightforward to keep, requires no special care, and coexists well with many other freshwater species. For these reasons, it is an excellent choice for beginning aquarists.

Tank
from 81 L (21 gal), 110 L (29 gal) recommended
Temperature
20 – 24 °C (68 – 75 °F)
Size in aquarium
6 – 8 cm (2.4 – 3.1 in)
Acidity
pH 7–8
Natural rangeRange on the map
  • Inle Lake area
  • Shan State
  • Myanmar

Tank conditions

Plan the tank stocking
Temperature
20 – 24 °C (68 – 75 °F)
Water pH
Neutral (7) – Slightly alkaline (8)
Water dH
Hard (12) – Very hard (21)
Water salinity
no salt (freshwater)
Size in aquarium
6 – 8 cm (2.4 – 3.1 in)
Lifespan
5 years
Temperament
Peaceful (regular)
Toward small fish
not a predator
Required aquarium volume
from 81 L (21 gal), 110 L (29 gal) recommended
Lighting
dimmed
Substrate
soft sandy including silted
Water flow
none or stagnant (no flow)
Swimming level
middle level
Feeding
Any (universal)
Keeping
Group (8–10 individuals)
Jumping
high a tight-fitting lid is essential
  • 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. The 81 L minimum corresponds to a tank footprint of 90×30 см. The recommended 110 L is for the group size given under keeping mode.

Care and keeping

Description

Adult Inle Danios reach 6–8 cm in length. They have a silvery colouration with attractive orange tones. The body bears short vertical stripes running from the head to the tail. Sexual dimorphism is poorly expressed, making it difficult to tell males from females.

Habitat

This fish originates from Southeast Asia, specifically from the secluded Inle Lake in Shan State, eastern Myanmar (Burma). The lake is famous for its many endemic species and is an important landmark of the region. Situated in a karst valley at 900 metres above sea level, Inle Lake has clear water and is relatively shallow, with depths of 2–3 metres in most places. The bottom is covered with silty substrates. The water surface is decorated with floating "plant islands"—clusters of various plants that shelter many aquatic inhabitants.

Behavior and Compatibility

This active and peaceful fish coexists well with other non-aggressive species of comparable size. Inle Danios prefer to live in a group of 8–10 individuals. If their numbers fall below this, other tank inhabitants may begin to harass them.

Care and Maintenance

For a group of 8–10 Inle Danios, a tank of at least 110 litres is optimal. When setting up the tank, use soft substrate and abundant rooted and floating plants. Lighting should be moderate. Keep water movement to a minimum. The key to successful keeping is maintaining high water quality within acceptable ranges of temperature, pH and dGH. Beyond regular tank maintenance such as water changes and removal of organic waste, install an effective filtration system—preferably an external filter. Such models avoid excessive flow while delivering the best water quality.

Diet

This species is undemanding in its diet. In the home aquarium, these fish readily consume most standard aquarium foods. Their daily diet can be based on dry foods such as flakes and pellets. If possible, you can add live or frozen foods to their diet, such as Daphnia, brine shrimp, bloodworms and others.

Breeding and Reproduction

Under favourable conditions, spawning can occur quite regularly. The females scatter their eggs among aquatic plants, and the males fertilise them immediately. The incubation period lasts approximately 24 hours; two days later, the fry are free-swimming. Parental care is absent in this species; the fish do not guard their eggs or young. Moreover, given the chance, they will eat both their own eggs and fry. Only a few fry survive to adulthood. To improve fry survival, move them promptly to a separate tank with similar water conditions. Such a tank is usually equipped with a simple air-lift filter and a heater; no additional lighting is needed.

Diseases

In a balanced aquarium environment suited to this species' needs, disease is rare. Most ailments result from poor conditions, contact with sick fish, or physical injury. If a fish shows obvious signs of disease, apply medical treatment.

How to choose

When buying, choose active, mobile fish that school together and show interest in their surroundings. Avoid fish with damaged fins, signs of emaciation, marks on the body, or unusual behaviour such as lethargy or constant surfacing. Given the rarity of this species, ensure there are no obvious signs of stress from transport or poor shop conditions. If possible, buy a group of 8–10 individuals at once, as social adaptation within the school significantly reduces stress in these fish. Before purchase, check that the fish do not have sunken bellies, which may indicate feeding problems or parasites.

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 Inle Danio get?

An adult reaches 6–8 cm in length. Plan the tank around the maximum size: the fish quickly outgrows a cramped setup.

What size aquarium does Inle Danio need?

The recommended volume is 110 L. A smaller tank speeds up nitrate build-up and raises stress levels.

What water parameters does Inle Danio need?

Temperature 20–24 °C, pH 7–8, hardness 12–21 dGH. Stability matters more than exact values: sudden swings are harder on the fish than a small deviation from the ideal.

How long does Inle Danio live?

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

Is Inle Danio aggressive?

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

How many Inle Danio should be kept together?

Recommended setup: group (8–10 individuals). Ignoring this is a common cause of stress and disease.

What does Inle Danio eat?

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

What is the scientific name of Inle Danio?

The scientific name of the species is Devario auropurpureus, family Cyprinids (Cyprinidae). It also appears in the literature as: Barilius auropurpureus, Inlecypris auropurpureus.

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Other scientific names and conservation status

Other scientific names
Barilius auropurpureus, Inlecypris auropurpureus
Conservation status
EndangeredEN