Sailfin Antenna Catfish – Leiarius pictus | Wild Caught | Peaceful large catfish with impressive dorsal fin

The sailfin antenna catfish (Leiarius pictus) is a majestic large catfish from the Amazon basin and is one of the most beautiful representatives of its family. Particularly striking are its high, sail-like dorsal fin and the contrasting pattern of dark spots and lines. This imposing species is peaceful, robust, and very popular with aquarists with large tanks.

In nature, Leiarius pictus inhabits calm, deeper sections of large river systems in South America. There, it lives bottom-oriented, often near roots or in the shade of large rocks. Juveniles show a more intense patterning that transitions into an elegant spotted pattern with age.

🌿 Characteristics & Care:
🐟 Fish size: XL (approx. 20–30 cm, juvenile)
🌍 Origin: South America (Amazon, Orinoco, Essequibo systems) – Wild-caught
🌡️ Temperature: 25–30 °C
💧 pH value: 6.0–7.5
⚖️ Total hardness: up to 20 °dGH
🐠 Social behavior: Peaceful, grows large, active
🏞️ Aquarium: from 1500 l (long-term >8000 l) with roots, current & free swimming space

🍽️ Feeding:
The sailfin antenna catfish is an omnivore with a preference for protein-rich food. Frozen and live food such as mussel meat, shrimp, krill, and fish pieces are readily accepted. Juveniles also eat food tablets and sinking granules. A varied diet promotes vitality and growth.

💡 Tip:
Leiarius pictus should be kept in very large, well-filtered aquariums with strong currents. Due to its size and activity, it is only suitable for experienced keepers. A combination with robust, larger fish is possible.

👉 Conclusion:
The sailfin antenna catfish (Leiarius pictus) is an imposing, peaceful large catfish with an impressive dorsal fin – a highlight for any large South American aquarium.