Edit Danio sp. 'TW01'

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Name

Scientific name

Danio sp. 'TW01'

Described by

Not recorded

Family

Cyprinidae

Common names

Black-barred Danio

Photograph credits

All 4 credited

Summary

The black-barred danio, Danio sp. 'TW01', is a cyprinid apparently discovered near the coastal town of Gwa in Rakhine State, western Myanma…

Size and aquarium

Maximum size

65mm, standard length

Aquarium size

Minimum length 120 cm, Minimum depth 30 cm

Water

Water conditions

Temperature 18–26°C, pH 6–7.5

Hardness

2–12dGH

Conductivity

Not recorded

Behaviour

Temperament

Peaceful

Community suitability

Community-safe

Where it lives

Countries, regions, rivers and lakes

Myanmar

Writing

Etymology

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

Distribution

Apparently discovered close to the coastal town of Gwa in Rakhine State, western Myanmar. Rakhine is largely cut off from the rest of the country by the Rakhin…

Habitat

Rakhine is located within a tropical monsoon region and has a pronounced rainy season between May and October, while at other times it can be quite dry. The st…

Aquarium size

An aquarium with base dimensions of 120 ∗ 30 cm 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

Not an aggressive fish but may upset very slow-moving or timid tankmates with its constant activity and vigorous feeding behaviour so can only be considered ap…

Sexual dimorphism

Mature males are more colourful and noticeably slimmer plus they have orange distal edges to the ventral and anal fins, these being white in females. In groups…

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 and we suggest upscaling an approach that has proven successful for smaller members of the genus.

The adult group can still be conditioned together but one or more long, shallow, say 65-85 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 3-7 days with the young free-swimming 24 to 48 hours later.

Initial food should be Artemia nauplii or a proprietary dry food of sufficiently small grade.

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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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Notes

It remains unclear whether this represents an undescribed species or geographical form of D. feegradei since it lacks pale spots on the body but is otherwise c…

References

6 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