Edit Danio jaintianensis

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Name

Scientific name

Danio jaintianensis

Described by

Authority Sen, Year 2007, Bracketed

Family

Cyprinidae

Common names

Not recorded

Photograph credits

All 4 credited

Summary

Danio jaintianensis is a small cyprinid known only from the Jaintia Hills of Meghalaya, in the Brahmaputra system of northeastern India. It…

Size and aquarium

Maximum size

45mm, standard length

Aquarium size

Minimum length 80 cm, Minimum depth 30 cm

Water

Water conditions

Temperature 18–23°C, pH 6–7

Hardness

1–8dGH

Conductivity

Not recorded

Behaviour

Temperament

Peaceful

Community suitability

Community-safe

Where it lives

Countries, regions, rivers and lakes

India, Brahmaputra

Writing

Etymology

Danio: from Dhani, a Bengalese vernacular term for small, minnow-like cyprinids. jaintianensis: named for the Jaintia Hills district from where the type series…

Distribution

To date known only from the Jaintia Hills district, Meghalaya state, northeastern India meaning its natural waters are part of the Brahmaputra River system. Th…

Habitat

Much of Meghalaya consists of forested hills which receive a great deal of rainfall and many of its high-elevation waters flow very swiftly, but this species i…

Aquarium size

An aquarium with base measurements of 80 ∗ 30 cm or equivalent is large enough to house a group.

Maintenance

Looks particularly effective in a heavily-planted arrangement with a darker substrate, and may appear paler in sparsely-decorated set-ups. We suggest maintaini…

Water conditions

Temperature: Air temperatures in Meghalaya vary from sub-zero in winter to around 73.4°F/23°C in summer so it's best kept in an unheated tank and tends to stru…

Diet

Almost certain to prey chiefly on insects and their larvae in nature. In the aquarium it's largely an unfussy feeder and will accept most foods. A good quality…

Behaviour and compatibility

This species is peaceful but its temperature requirements and rarity make it difficult to recommend for the general community. It's best kept in a species disp…

Sexual dimorphism

Sexually mature females should be rounder-bellied, less colourful and a little larger than males.

Reproduction

We know of no reports as yet but like other danionins this species should be an egg-scattering spawner that exhibits no parental care. That's to say when the f…

We know of no reports as yet but like other danionins this species should be an egg-scattering spawner that exhibits no parental care.

That's to say when the fish are in good condition they're likely to spawn often and in a densely-planted, mature aquarium it's possible that small numbers of fry may start to appear without intervention.

However if you want to increase the yield of fry a slightly more controlled approach is required, and the following method has proven successful for other members of the genus.

The adult group can still be conditioned together but one or more separate containers should also be set up and half-filled with water.

Much of the available space should be filled with a suitable spawning medium such as Java moss, wool mops or a spawning grid.

The water should be of slightly acidic to neutral pH with a temperature towards the upper end of the range suggested above.

An internal power filter can be added initially and this should be positioned so that the flow is directed down the full length of the tank.

When the adult fish are well-conditioned and the females appear full of eggs one or two pairs should then be introduced to each container.

Spawning can be initiated by adding small amounts of cool water every few hours in such a way that the tank is gradually topped up and feeding small amounts of live and frozen foods, or by performing a large (50-60%) water change in the evening.

Several spawning events will probably occur before a female is spent of eggs.

The adults will eat any they find and are best removed once eggs are spotted.

At this point the power filter (if using) should be switched for a mature sponge-type unit in order to avoid fry being sucked into the mechanism.

Incubation in is temperature-dependant to an extent but usually takes between 24-36 hours with the young free-swimming a few days later.

Initial food should be of an infusoria-type grade followed by Artemia nauplii, microworm or similar.

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Where does this come from?

My own experienceFor example, I've kept twelve in a planted 60 cm tank since March 2024.A website I sawFor example, an IUCN Red List assessment, a museum catalogue or a FishBase page.A paperFor example, Marshall et al. (2011), Water temperature differences in interfluvial palm swamp habitats of Paracheirodon axelrodi and P. simulans.A book, or something not onlineFor example, Tappin (2010), Rainbowfishes: their care and keeping in captivity.Something already on the pageFor example, the Behaviour and compatibility section already says this.

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DOI

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Title

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Authors

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Year

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Pages

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Anything worth adding

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Notes

This species has occasionally been available in the aquarium trade since its discovery. In recent years it's become commonplace to refer to the stripes on the …

References

9 on this profile

Name

Scientific name

Described by

Family

Common names

Photograph credits

Summary

Size and aquarium

Maximum size

Aquarium size

Water

Water conditions

Hardness

Conductivity

Behaviour

Temperament

Social needs

Community suitability

Where it lives

Countries, regions, rivers and lakes

Writing

Etymology

Distribution

Habitat

Aquarium size

Maintenance

Water conditions

Diet

Behaviour and compatibility

Sexual dimorphism

Reproduction

Notes

References

References