Tetraodon schoutedeni
The Congo puffer is a bottom-dwelling ambush predator from Central Africa. It spends much of its time buried in sand with only eyes showing. Keep singly in a species tank or with robust, fast fish too large to be treated as food—not a community “centrepiece” for typical mixed aquaria. Requires chunky meaty foods and snails or crustaceans for dental wear; excellent filtration and regular maintenance.
Whole mussel, prawn, silversides (appropriate size), large frozen worms; snails for beak maintenance; tong-feed to reduce competition injuries.
Frequency: 4–5× weekly
Overfeeding causes fatty liver—lean body condition is healthier than constant bloating.
Native Region: Central Africa (Congo River basin)
Sandy riverbeds and leaf litter zones with slow to moderate flow.
Deep fine sand for burying; leaf litter optional; dim lighting; minimal sharp decor.
Activity Level: Low
Ambush predator—sudden bursts; may injure tankmates during feeding frenzies.
Difficulty: Difficult
Type: Egg layer
Sexual Dimorphism: Little known in hobby; assume sexing unreliable without breeding.
Rare in captivity; specialist facilities only.
Substrate: Sand
Plant Safe: No
Flat sand runway; smooth stones; no small crustacean “clean-up” crew.
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