Dwarf Pufferfish (Tetraodontidae sp.) in a freshwater aquarium
Advanced careAggressiveMid dwellerAsia / South America

Dwarf Pufferfish

Tetraodontidae sp.

The Dwarf Pufferfish (Tetraodontidae sp.) is an aggressive fish that's best left to experienced keepers. Give it a tank of at least 55 litres (15 US gallons), water held at 72-82°F, and a pH of 7-8.

Care levelAdvanced
TemperamentAggressive
Min tank size14.5 US gal
pH range7-8
Temperature72-82°F
Max size1.1 in (2.9 cm)
Captive lifespan5-12 years
SchoolingNo
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Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Asia / South America

  • East & Southeast Asia
  • South America

Regional colours match the stocking calculator's origin map.

Dwarf Pufferfish Tank Setup

Give them at least 55 litres (15 US gallons) - many puffers are messy and can deliver a real bite. Keep the water at 72-82°F with a pH around 7-8; a species-only tank is often the safest choice.

What Do Dwarf Pufferfish Eat?

They're meat-eaters, so feed good-quality frozen or gel foods rather than relying on generic flake. Go easy on portions - leftover protein fouls the water faster than plant foods do.

Dwarf Pufferfish Tank Mates

May nip fins; avoid with long-finned or slow tankmates. Predatory; may eat small fish or inverts. The Dwarf Pufferfish is aggressive, which is the first thing to weigh up when you choose tank mates. It's a known fin-nipper, so avoid bettas, guppies, and other slow, long-finned fish. It's predatory, so anything small enough to fit in its mouth will be treated as food rather than a companion. Before you buy, run your full stocking list through our stocking calculator. It weighs temperament, adult size, and water needs together, which a single species page can't do on its own.

Are Dwarf Pufferfish Good for Beginners?

Not a sensible first purchase. Get the tank cycled, keep easier fish stable for a year, then revisit if you still want the extra work this species demands.

Dwarf Pufferfish - frequently asked questions

What size tank do Dwarf Pufferfish need?

Dwarf Pufferfish need a tank of at least 55 litres (15 US gallons). A bigger tank is always easier to keep stable, and gives them more room to settle in and behave naturally.

What water parameters do Dwarf Pufferfish need?

Keep them at 72-82°F with a pH of 7-8, steady rather than chased to an exact figure. In a cycled tank, ammonia and nitrite should both read 0 ppm, with nitrate kept low through regular water changes.

What do Dwarf Pufferfish eat?

Dwarf Pufferfish are meat-eaters. Feed good-quality frozen or gel foods rather than relying on generic flake, and don't overfeed. Feed small amounts once or twice a day, and remove anything they don't eat.

Are Dwarf Pufferfish good for beginners?

Dwarf Pufferfish are not a beginner species. They need precise conditions and consistent maintenance, so build experience with hardier fish before keeping them.

Common mistakes with Dwarf Pufferfish

  • Mixing with long-finned fish - Dwarf Pufferfishs will nip at bettas, angelfish, and other fish with flowing fins, causing stress and infection risk.

Building a community? Run the full list through the stocking calculator before you add anything else.

Fish to avoid mixing with Dwarf Pufferfish

These well-known species are commonly sold alongside this fish but are not recommended tank mates - verify before purchasing.

  • OscarPredator - Oscar will eat or injure smaller tank mates
  • Neon TetraIncompatible temperament or care requirements
  • Pygmy CoryIncompatible temperament or care requirements