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Liosomadoras morrowi

False Jaguar Catfish

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False Jaguar Catfish (Liosomadoras morrowi)
False Jaguar Catfish (Liosomadoras morrowi)JJPhoto

Quick factsEdit

Max size
150mm SL6in SL
Aquarium size
120 × 30cm48 × 12in
Temp
20–25°C68–77°F
pH
6.0–7.0
Hardness
2–10dGH

Difficulty4 of 8 measures

Easy

How the rating is worked out

Space
large tank
Water
needs a steady pH
Temp
flexible
Diet
unknown
Temperament
peaceful
Social
unknown
Compatibility
unknown

Other demands

Each of these can raise the rating on its own, whatever the measures above say.

Hardiness
unknown

The false jaguar catfish, Liosomadoras morrowi, is an auchenipterid catfish from the Río Ucayali basin in Peru. It is often confused with its congener L. oncinus, from which it differs in its duller patterning. Nocturnal, peaceful and shy, it will eat small fish during the hours of darkness, and fertilisation is internal, with the male's extended anal fin used in a similar way to a livebearer's gonopodium.

Distribution

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The Río Ucayali basin, Peru.

The main river and its tributaries.

Aquarium size

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Standard length
150mm SL6in SL
Aquarium base
120 × 30cm48 × 12in
Volume
~108litres~29US gal

120 ∗ 30 ∗ 30 cm48 ∗ 12 ∗ 12 in - ~108 litres~29 US gal, larger if more than one is to be kept.

Maintenance

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This is a nocturnal fish, so dim lighting is required to make it feel secure. Plenty of cover should also be provided, particularly if you're keeping several fish together. Smooth rocks, driftwood, lengths of pvc piping and plants that can survive under low levels of light, such as Anubias sp., java fern and Vallisneria can all be used.

Water conditions

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Temperature
20–25°C68–77°F
pH
6.0–7.0
Hardness
2–10dGH

Temperature: 20 – 25 °C68 – 77 °F

pH: 6.0-7.0

Hardness: 2-10°H

These recommendations come from this profile’s own figures. They contain affiliate links, so we may earn a commission.

Unfussy. It relishes live and frozen foods such as bloodworm, earthworms etc., as well as sinking dried foods. Add food after lights out to ensure it receives its share.

Behaviour and compatibility

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Peaceful and shy, but will eat small fish during the hours of darkness. Ideally, keep it in a South American biotope aquarium, with similarly-sized characins, cichlids and other peaceful catfish such as Corydoras sp. and Loricariids. It is sometimes territorial with its own kind, but several can be kept in a suitably-sized aquarium if lots of cover is provided.

Sexual dimorphism

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Males have an extended anal fin, which is used in a similar fashion to the gonopodium possessed by livebearers.

Reproduction

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Not thought to have been achieved in aquaria. Fertilisation occurs internally.

Notes

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Often confused with its congener L. oncinus, the false jaguar cat can be distinguished by its less attractive, duller patterning. It's a good bottom dweller for the larger community.

Distribution

Profile completeness19 of 24

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