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Hara jerdoni

Asian Stone Catfish

Authority not recorded

Last revised 2026

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Asian Stone Catfish (Hara jerdoni)
Asian Stone Catfish (Hara jerdoni)JJPhoto

Quick facts

Length
30mm SL1.2in SL
Tank base
30 × 20cm12 × 8in
Temp
18–24°C64–75°F
pH
5.6–7.6
Hardness
8–15dGH

Difficulty6 of 8 measures

Beginner

How the rating is worked out

Space
small tank
Water
flexible
Temp
flexible
Diet
unknown
Temperament
peaceful
Social
needs to be in a group
Compatibility
fine with others

Other demands

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

Hardiness
unknown

The Asian stone catfish, Hara jerdoni, is a tiny sisorid catfish from India and Bangladesh, found in slow-moving streams and small rivers. It grows to around 30 mm SL and is told apart from others in the genus by its elongated pectoral spines. It and its congeners also go by the name moth catfish, after their patterning and shape when viewed from above. Very peaceful, it prefers soft substrates and is outcompeted by active bottom-dwelling species.

Distribution

Habitat

Inhabits slow-moving streams and small rivers. It's preferred habitats are characterised by soft substrates.

Aquarium size

Standard length
30mm SL1.2in SL
Aquarium base
30 × 20cm12 × 8in
Volume
~12litres~3US gal

30 ∗ 20 ∗ 20 cm12 ∗ 8 ∗ 8 in - ~12 litres~3 US gal. Not only is this species tiny, it's also very inactive, and so doesn't need much room. If keeping it in a very small tank you must pay extreme care to water parameters (see below).

Maintenance

Provide as many hiding places as possible, along with a soft, sandy substrate. The addition of some dried beech or oak leaves and pieces of driftwood would simulate the natural habitat of the fish nicely. The water must be kept clean, relatively cool and well-oxygenated or the fish will suffer as its natural waters are high in dissolved oxygen.

Water conditions

Temperature
18–24°C64–75°F
pH
5.6–7.6
Hardness
8–15dGH

Temperature: 18 – 24 °C64 – 75 °F

pH: 5.6-7.6

Hardness: 8-15°H

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

Diet

It will accept most small foods, including dried pellets, but should be offered a diet composed mainly of live and frozen varieties, such as bloodworm, daphnia etc. It's strictly a noctunal feeder so add food after lights out to ensure it gets its share.

Behaviour and compatibility

A very peaceful little cat that fits well into communities of other small species, or into a biotope setup with other Asian stream-dwelling species, such as Dario sp. and danios. Don't keep it with any active bottom-dwelling species or it will be out-competed for food easily. It can be kept with others of its own kind without any problems, and in fact prefers to be kept in a group.

Sexual dimorphism

Unknown. It is likely that females will appear broader than males when full of eggs.

Reproduction

Has been bred in aquaria, but unfortunately very few details are available. Apparently the eggs were deposited in spawning mops.

Notes

This delightful little species can be distinguished from others in the genus by its elongated pectoral spines. It, and others in the genus (and also the closely related genus Erithistes), also go by the common name of moth catfish due to their patterning and shape when viewed from above.

Profile completeness20 of 24

83% complete

Also missing: a recorded distribution, taxonomic authority, etymology.

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