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The Congo Puffer (Tetraodon miurus) is a fascinating and highly predatory freshwater pufferfish native to the Congo River basin in Africa. Known for its cryptic ambush hunting style, this species boasts a unique and often mottled brown, grey, or olive coloration that allows it to blend seamlessly with its environment, often resembling a rock or fallen leaf. Congo Puffers are relatively small, typically reaching 3-4 inches (7-10 cm), but they possess an incredibly powerful bite due to their fused beak-like teeth, which require regular wear through a diet of crunchy foods to prevent overgrowth. They are highly aggressive and territorial, making them strictly a species-only fish in aquariums, or in very rare, extremely large, and carefully aquascaped setups, they might tolerate other large, robust, and equally aggressive species. An ideal tank size for a single adult is a minimum of 20-30 gallons, with plenty of caves, rocks, and driftwood to provide hiding spots and break up lines of sight. Water parameters should be stable, with temperatures ranging from 75-80°F (24-27°C), a pH of 6.5-7.5, and soft to moderately hard water. Their diet must be varied and consist of meaty foods like ghost shrimp, snails, mussels, krill, and earthworms. Live foods are particularly beneficial for stimulating their natural hunting instincts. Due to their specific care requirements, aggressive nature, and specialized diet, Congo Puffers are best suited for experienced aquarists who can dedicate the time and resources to provide a proper environment for this captivating, yet challenging, species.

An ambush predator that buries itself in the sand. Must be kept in a species-only tank.