Giant Talking Catfish

Megalodoras uranoscopus is one of the most impressive doradids available in the hobby. Its common name 'uranoscopus' (sky-gazer) reflects its distinctly upward-angled eye position and flattened head profile, adaptations that may relate to detecting falling fruit or overhead threats. It reaches 70 cm and develops a deeply keeled, heavily scuted body that gives it a prehistoric appearance. In the wild it is renowned for crushing apple snails and other hard-shelled molluscs with its powerful pharyngeal teeth.

In the aquarium, M. uranoscopus is peaceful to the point of being the gentlest giant catfish in the hobby. It will not bother tankmates of any reasonable size and is content to forage slowly across the substrate for food. Its enormous size eventually demands a very large aquarium, but it is patient in growing into that requirement. It is entirely nocturnal and spends daylight hours motionless in caves.

Feeding should include hard-shelled prey when possible — live snails are particularly enriching and stimulate natural behaviour. Large sinking pellets, earthworms, and fruit also feature in a varied diet. The Giant Talking Catfish is a bucket-list species for doradid enthusiasts.

Water: 22–28°C, pH 6.0–7.5, soft to moderately hard; clean with regular water changes. Tank: 1 500 L minimum; fine sand; very large caves; strong filtration. Feeding: Live snails, earthworms, large sinking pellets, fruit, frozen shrimp; molluscivore adaptations. Breeding: Not documented in home aquaria. Compatibility: Highly peaceful; suitable with any large non-aggressive species.