River Threadfin Paradiseus Catfish Polydactylus Macrophthalmus 8cm

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River Threadfin Paradiseus Catfish (Polydactylus macrophthalmus)

Overview

The River Threadfin Paradiseus Catfish is a distinctive freshwater catfish known for its elongated body, thread-like barbels, and large expressive eyes. This nocturnal, bottom-dwelling species is an intriguing addition to larger aquariums, showcasing unique behaviour and gentle predatory instincts.

Origin

Native to Southeast Asia, inhabiting rivers, streams, and estuaries with sandy or muddy substrates. Prefers areas with slow to moderate flow and ample hiding spots.

Feeding

Carnivorous. Feeds primarily at night on small fish, invertebrates, worms, and high-protein sinking pellets. A varied diet of live, frozen, and prepared foods ensures optimal health.

Tank Mates

Best kept with medium to large, non-aggressive fish. Avoid very small fish or shrimp, which may be eaten. Suitable companions include large tetras, barbs, peaceful cichlids, and other bottom dwellers of comparable size.

Aggression

Generally peaceful toward similar-sized tank mates, but territorial over substrate and feeding space. May prey on smaller fish.

Experience Level

Intermediate to advanced. Requires a large, well-maintained aquarium with soft substrate and stable water conditions.

Water Parameters

• Temperature: 75°F – 82°F (24°C – 28°C)

• pH: 6.5 – 7.5

• Hardness: 5 – 15 dGH

• Notes: Provide driftwood, rocks, and shaded areas for daytime hiding; nocturnal activity is normal.

Unique, fascinating, and hardy when established, the River Threadfin Paradiseus Catfish (Polydactylus macrophthalmus) is a rewarding species for aquarists seeking a nocturnal, bottom-dwelling centerpiece.

Above images for illustration purposes only. Exact colours, patterns, and size may vary between individuals.

Please Note: The livestock that is sold on our online site is not held in store at our Swell shop, or available for collection from the shop. Species sold at our Swell store will differ from ones available to order to your door.

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