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Edit Axelrodia riesei

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Name

Scientific name

Axelrodia riesei

Described by

Authority Géry, Year 1966

Family

Characidae

Summary

The ruby tetra, Axelrodia riesei, is a tiny characid known only from the upper Río Meta basin in Colombia, part of the Orinoco system. It i…

Size and aquarium

Maximum size

20mm, standard length

Tank size

Minimum length 60 cm, Minimum depth 30 cm

Water

Temperature and pH

Temperature 20–28°C, pH 4–6.5

Hardness

1–5dGH

Conductivity

Not recorded

Behaviour

Temperament

Peaceful

Social needs

A shoal or group

Community suitability

Not for a community

Where it lives

Countries

Colombia

Supporting text

Etymology

Axelrodia: named for Dr. Herbert R. Axelrod. riesei: named for William Riese who collected this species alongside Dr. Axelrod.

Distribution

Type locality is 'Upper Río Meta basin, east of Villavicencio, Colombia', and this species is currently known only from the upper Meta. The Meta is a tributary…

Habitat

Said to be an inhabitant of blackwater environments but detailed information is lacking. Presumably it inhabits smaller, forested tributaries rather than large…

Aquarium size

Despite its small size minimum base dimensions of 60 ∗ 30 cm24 ∗ 12 in or equivalent are recommended for long-term care, though smaller aquaria can be used for…

Maintenance

Best-maintained in a well-structured set-up, ideally comprising a sandy substrate plus some driftwood roots and branches. The addition of dried leaf litter fur…

Water conditions

Not written yet

Diet

Probably a micropredator feeding on tiny invertebrates and other zooplankton in nature. In the aquarium it will normally accept dried foods of a suitably small…

Behaviour and compatibility

Peaceful with other species but does not make an ideal community fish due to its small size and somewhat specialised requirements Ideally it should be maintain…

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Sexual dimorphism

Adult males are slightly smaller and more intensely-coloured than females. Sexually mature females appear rounder-bodied than males, especially when gravid. It…

Reproduction

Has been achieved and in a properly-structured, mature aquarium it's possible that small numbers of fry may start to appear without intervention. The main requ…

Notes

This species is less often seen than its congener A. stigmatias in the aquarium hobby, presumably a reflection of its more remote, restricted natural range. Th…

References

References

3 on this profile