What size tank does a Congo Puffer need?

Congo Puffer needs a minimum of 40 gallons, with 60 gallons recommended. They are bottom swimmers.

Is Congo Puffer good for beginners?

Congo Puffer is rated "expert" difficulty (4/5). Best for experienced aquarists.

What fish are compatible with Congo Puffer?

Congo Puffer is aggressive. Compatible tank mates include other aggressive fish with similar water parameters (pH 6.5-7.5, temp 75-82°F). Give adequate territory space.

Congo Puffer

Tetraodon miurus

Family: Tetraodontidae • Origin: Various

Congo Puffer (Tetraodon miurus) is a aggressive other reaching 6 inches. Can be kept singly. Minimum tank: 40 gallons.

Min Tank

40 gal

Max Size

Temperature

75-82°F

6.5-7.5

Lifespan

7 years

School Size

Solo OK

Swim Level

bottom

Hardness

5-15 dGH

aggressiveexpertcarnivore

Is Congo Puffer Right for Your Tank?

Congo Puffer is rated "expert" (4/5) — best for experienced aquarists. They have specific requirements that make them challenging for beginners. They need at least 40 gallons — a mid-size tank commitment. Plan your space accordingly.

Congo Puffer is aggressive and best kept alone or with other robust species that can hold their own. Not suitable for peaceful community tanks. They are territorial — provide adequate hiding spots and maintain enough space to reduce aggression. Expected lifespan: 7 years with proper care.

Common Mistakes with Congo Puffer

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Relying on a heater without a thermometer

Congo Puffer needs 75–82°F. Heaters malfunction or drift over time — always use a separate thermometer to verify. Temperature swings of even 3–4°F can trigger stress and disease, particularly ich.

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Putting them in a tank under 40 gallons

Many beginners underestimate tank size needs. Congo Puffer requires at least 40 gallons — ideally 60. Cramped tanks lead to stunted growth, aggression, and poor water quality.

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Housing with peaceful nano fish

Congo Puffer is aggressive and territorial — small, peaceful species like neon tetras, endlers, or celestial pearl danios will be stressed, bullied, or eaten. Choose tank mates that can hold their own.