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Edit Hassar orestis

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Name

Scientific name

Hassar orestis

Described by

Not recorded

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Where does this come from?

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Family

Doradidae

Common names

Black-top Mouse Catfish

Photograph credits

All 5 credited

Summary

The black-top mouse catfish, Hassar orestis, is a doradid catfish recorded in Ecuador, Colombia, Venezuela, Guyana, Peru and Brazil. It can…

Size and aquarium

Maximum size

180mm, standard length

Aquarium size

Minimum length 120 cm, Minimum depth 38 cm, Minimum height 30 cm

Water

Water conditions

Temperature 22–27°C, pH 6–7.5

Hardness

5–20dGH

Conductivity

Not recorded

Behaviour

Temperament

Not recorded

Social needs

A shoal or group

Community suitability

Not recorded

Where it lives

Countries, regions, rivers and lakes

Brazil, Colombia, Ecuador, Guyana, Peru, Venezuela

Writing

Etymology

Not written yet

Distribution

Widespread throughout much of northern South America. Populations have been recorded in Ecuador, Colombia, Venezuela, Guyana, Peru and Brazil.

Habitat

Slow-moving and standing waters, including tributaries, swamps and coastal mangroves. The fish are usually found sheltering among roots or submerged vegetation.

Aquarium size

Not especially active, considering its size. A 120 ∗ 38 ∗ 30 cm - ~137 litres tank could comfortably house a few of these.

Maintenance

The species is quite shy and retiring, and needs plenty of cover in its tank. It seems to prefer hiding in thickets of plants over wood, rocks etc. Dim lightin…

Water conditions

Temperature: 22 – 27 °C pH: 6.0-7.5 Hardness: 5-20°H

Diet

Newly imported fish tend to be quite fussy and will only accept small foods, such as bloodworm, Daphnia or granulated dried varieties. Once acclimatised to aqu…

Behaviour and compatibility

Despite its size, it is not a predator and is safe with all but the tiniest of fish. It might intimidate small, sedate bottom dwellers such as Apistogramma spe…

Sexual dimorphism

Males possess an elongated first dorsal ray. Females have more rounded pectoral fins than males.

Reproduction

Unrecorded.

Notes

This species can be quite delicate when first imported, but once settled is usually quite hardy. When buying the fish, check that it has a rounded belly and th…

References

References

No references