Edit Danio sp. 'hikari'

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Name

Scientific name

Danio sp. 'hikari'

Described by

Not recorded

Family

Cyprinidae

Summary

The hikari danio, Danio sp. 'hikari', is a probable undescribed cyprinid from the Tanintharyi River drainage in southern Myanmar. First ava…

Size and aquarium

Maximum size

65mm, standard length

Tank size

Minimum length 120 cm, Minimum depth 30 cm

Water

Temperature and pH

Temperature 18–26°C, pH 6.5–7.5

Hardness

1–12dGH

Conductivity

Not recorded

Behaviour

Temperament

Peaceful

Community suitability

Community-safe

Where it lives

Countries

Myanmar

Supporting text

Etymology

Danio: from Dhani, a Bengalese vernacular term for small, minnow-like cyprinids.

Distribution

Collected from the Tanintharyi River drainage, a tributary of the Tenasserim River system in Tanintharyi (formerly Tenasserim) Division, southern Myanmar.

Habitat

No details are available but expect it to inhabit quieter, slower-moving sections of streams and minor rivers.

Aquarium size

An aquarium with base dimensions of 120 ∗ 30 cm48 ∗ 12 in or equivalent should be the smallest considered.

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

Not written yet

Diet

Probably preys on insects and their larvae in nature. In the aquarium it's largely an unfussy feeder and will accept most foods. A good quality dried product o…

Behaviour and compatibility

This species is very peaceful indeed making it an ideal resident of the well-furnished community tank. Since it places no special demands in terms of water che…

Sexual dimorphism

Males have an overall yellowish-green body colour which extends into the fins whereas females are predominantly blue.

Reproduction

Like most cyprinids this species is an egg-scattering spawner that exhibits no parental care. That is to say when the fish are in good condition they will spaw…

Like most cyprinids this species is an egg-scattering spawner that exhibits no parental care.

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

However if you want to increase the yield of fry a slightly more controlled approach is required.

The adult group can still be conditioned together but one or more small, say 30-40 litre, 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 Artemia nauplii 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 profileFor example, the Behaviour and compatibility section already says this.

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DOI

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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 probable undescribed species first became available to aquarists in 2002, with males and females marketed as 'Danio sp. hikari yellow' and 'D. sp. hikari …

References

6 on this profile

Name

Scientific name

Described by

Family

Summary

Size and aquarium

Maximum size

Tank size

Water

Temperature and pH

Hardness

Conductivity

Behaviour

Temperament

Social needs

Community suitability

Where it lives

Countries

Supporting text

Etymology

Distribution

Habitat

Aquarium size

Maintenance

Water conditions

Diet

Behaviour and compatibility

Sexual dimorphism

Reproduction

Notes

References

References