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FishmediumFreshwater

Asian Stone Catfish

Hara jerdoni

Also known as Stone Catfish, Asian Stone Cat, Moth Catfish, Indian Stone Catfish

AnimaliaChordataActinopterygiiSiluriformesErethistidae

📍 Brahmaputra & Ganges drainages, India & Bangladesh

The Asian Stone Catfish is a tiny, cryptic fish reaching barely 3 cm (1.2 in), with a flattened, mottled brown-grey body covered in rough, granular skin that mimics pebbles and leaf litter. It is a peaceful, reclusive bottom dweller that spends most of its time motionless among substrate and debris, making it an excellent micro-predator for nano and species-appropriate community setups.

Size1.2"
Min Tank10g
School4+
peaceful
Zonebottom

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Care Guide

Diet

Hara jerdoni is a carnivorous micro-predator that thrives on small live and frozen foods such as micro worms, baby brine shrimp, daphnia, and finely chopped bloodworms. It will rarely accept dry foods initially, though some individuals can be trained onto high-quality sinking micro pellets over time. Feeding should occur at night or in dim lighting, as this species is largely nocturnal and will be outcompeted by more active tankmates during daylight hours.

Behavior

This species is highly sedentary and cryptic, spending the majority of its time wedged among pebbles, driftwood, or leaf litter where its mottled coloration provides near-perfect camouflage. It is entirely peaceful and poses no threat to any tankmate it cannot swallow whole, though it may be easily outcompeted for food by faster or more boisterous species. A group of four or more individuals is recommended, as they appear more comfortable and active when kept with conspecifics.

Breeding

Breeding Hara jerdoni in captivity is uncommon but has been achieved in well-maintained, species-appropriate setups with cool, highly oxygenated water and abundant hiding places. Spawning typically occurs among fine-leaved plants or moss, where small clutches of eggs are deposited; parental care is minimal to absent. Raising fry requires infusoria or commercially prepared micro fry foods, as the juveniles are extremely small upon hatching.

Common Diseases

Ich (White Spot Disease)

Symptoms

Fine white spots resembling salt grains on body and fins, flashing against surfaces, lethargy

Treatment

Raise temperature gradually to 26 C if tolerated, treat with a half-dose of ich medication as scaleless fish are sensitive; ensure excellent water quality throughout treatment.

Bacterial Skin Infection

Symptoms

Reddening, ulceration, or fuzzy patches on the rough skin; loss of appetite and lethargy

Treatment

Improve water quality immediately with partial water changes; treat with a mild broad-spectrum antibiotic such as kanamycin at reduced dose appropriate for scaleless catfish.

Fungal Infection

Symptoms

White or grey cotton-like growths on body, fins, or around the mouth

Treatment

Treat with antifungal medication such as methylene blue or a commercial antifungal product at half the recommended dose; remove carbon from filter during treatment and maintain pristine water conditions.

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Quick Facts

diet
Small live and frozen invertebrates; micro worms, daphnia, bloodworms
lifespan
3-5 years
max size
3 cm (1.2 in)
tank size
10 gallons minimum

Water it likes

ph
6.0-7.5
ammonia
0 ppm
nitrate
<20 ppm
hardness
2-10 dGH
temperature
64–75°F (18–24°C)

Legality

No state or federal restrictions on record for this species.

Not legal advice, and possibly incomplete or out of date. Rules vary by state and locality and change over time — always confirm the current regulations with your state wildlife or agriculture agency before buying, keeping, or shipping this species.

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