Edit Rasbora cf. dandia

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Name

Scientific name

Rasbora cf. dandia

Described by

Not recorded

Family

Cyprinidae

Common names

Not recorded

Photograph credits

All 5 credited

Summary

Rasbora cf. dandia is a cyprinid from Sri Lanka and southern India that may well be a form of R. dandia itself. It appears to be widely ava…

Size and aquarium

Maximum size

99mm, standard length

Aquarium size

Minimum length 120 cm, Minimum depth 45 cm, Minimum height 45 cm

Water

Water conditions

22–25°C

Hardness

2–12dGH

Conductivity

Not recorded

Behaviour

Temperament

Peaceful

Community suitability

Not recorded

Where it lives

Countries, regions, rivers and lakes

Not recorded

Writing

Etymology

Not written yet

Distribution

Widespread throughout Sri Lanka, where it's possibly the commonest freshwater fish species (Silva et al. 2010), and equally well-distributed in the southern In…

Habitat

Inhabits virtually all kinds of lowland freshwater habitat to an elevation of around 700 m AMSL including rivers, streams, rice paddies, ponds and artificial r…

Aquarium size

A tank measuring at least 120 ∗ 45 ∗ 45 cm/~243 litres is needed for long-term care.

Maintenance

Choice of décor is not as critical as water quality and the amount of open swimming-space provided. We suggest keeping it in a large, well-planted aquarium or …

Water conditions

Temperature: 22 – 25 °C pH: 6.0 - 7.5 Hardness: 2 - 12°H

Diet

Probably feeds mostly on invertebrates both aquatic and terrestrial in nature as with similar members of the genus. In the aquarium it's easily-fed but for it …

Behaviour and compatibility

This species is peaceful enough making it an ideal resident of larger community aquaria. It places no special demands in terms of water chemistry and can be co…

Sexual dimorphism

Mature females are noticeably rounder-bellied and often a little larger than males.

Reproduction

This species has been bred by Pete Liptrot and Paul Dixon at the Bolton Museum Aquarium, UK. Like most cyprinids this species is an egg-scattering, continuous …

This species has been bred by Pete Liptrot and Paul Dixon at the Bolton Museum Aquarium, UK. Like most cyprinids this species is an egg-scattering, continuous 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 intervention.

The relatively large, non-sticky eggs were not deposited in plants but rather scattered randomly over the substrate. These were siphoned into a smaller container since the adults had apparently eaten them following previous spawning events. The incubation period was approximately 60 hours.

Initial food was Paramecium but the fry were able to accept Artemia nauplii, microworm and dried foods of a suitable size within 24 hours. The growth rate was very fast indeed with some measuring in excess of 25 mm1.0 in within 4 weeks and when considered along with egg size may be an indication that this species spawns in fast-moving water or habitats with a relative lack of nursery areas and smaller food items.

If you wish to maximise yield it may be worth suspending a layer of plastic mesh or netting, with a large enough grade so that the eggs can fall through it but small enough so that the adults cannot reach them, above the base of the tank and removing the adults post-spawning. The widely available plastic 'grass'-type matting is also proven to work well as an 'egg trap' with some other Rasbora species.

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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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Year

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Pages

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Anything worth adding

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Notes

This fish may well be a form of R. dandia itself but in the absence of scientific confirmation we list it with a 'cf' abbreviation for the time being. It appea…

References

5 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