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Pea puffer
AI illustration, not an ID reference

Pea puffer

Carinotetraodon travancoricus

FishFreshwater

Care level
Moderate
Temperament
Semi-aggressive
Minimum tank
40 L
Maximum size
3 cm
Temperature
24–28 °C
pH
6.5–7.8
Diet
Carnivore

Care at a glance

At three centimetres the pea puffer is the smallest pufferfish in the world, and it behaves like a miniature predator: hovering motionless in the water, rotating its eyes independently, then darting at prey with intent. For such a small fish that makes for surprisingly good watching.

It does not eat dry food. Plan on frozen or live food, and on snails — it needs those to wear down its constantly growing teeth, so a running bladder or ramshorn snail culture is not a luxury. It is also a fin nipper and eats shrimp, so in practice only a species tank works. Stock more females than males and provide plenty of planting as sight breaks.

Good to know

  • Territorial
  • Nips long fins
  • Preys on shrimp and snails

Best not combined with

Related species

Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.

In the BlubHub app you link your inhabitants to this database and see the care info next to your own water parameters.