Pea Puffer (Carinotetraodon travancoricus)
Also known as the Dwarf Puffer or Malabar Pufferfish
The Pea Puffer is a tiny freshwater pufferfish bursting with personality and intelligence. Native to the rivers and lakes of India, this species is the smallest pufferfish in the world. Despite its size, the Pea Puffer can be feisty and territorial, making it best kept in species-only tanks or with careful consideration of tank mates. These inquisitive fish require densely planted aquariums with hiding spots and open swimming areas. They thrive on a varied diet of live or frozen foods such as bloodworms and snails, which also help keep their beaks trimmed.
Need to Know:
- Recommended For: Species-only or carefully planned nano tanks with ample plant coverage and hiding places
- Diet: Bloodworms, frozen foods, snails
- Water Conditions: Warm, stable water with pH between 6.0 and 7.5, temperature 72–78°F
- Size: Up to 1.5 inches (3.8 cm) in length
| Feature | Detail |
|---|---|
| Species | Carinotetraodon travancoricus |
| Size | Up to 1.5 inches (3.8 cm) |
| Origin | India |
| Lifespan | 5–7 years |
| Temperament | Feisty, territorial |
FAQ
What kind of tank setup is best for a Pea Puffer?
A densely planted aquarium with plenty of hiding spots and open swimming areas is ideal. The tank should be species-only or carefully planned with compatible tank mates to avoid aggression.
What does a Pea Puffer eat?
Pea Puffers thrive on a varied diet of live or frozen foods such as bloodworms, snails, and other small invertebrates. This diet also helps maintain their beak shape.
How big does a Pea Puffer grow?
The Pea Puffer grows up to 1.5 inches (3.8 cm) in length, making it one of the smallest pufferfish species.


Julia Glover –
The Pea Puffer is a charming little fish with a lot of personality. I kept it in a 10-gallon tank with heavy plant coverage and it’s very active. It eats bloodworms regularly and stays calm when not feeding. A great addition to a small freshwater setup.
Katherine MacLeod –
It’s tiny but very lively. I had to be careful with tank mates, so I kept it alone. The fish enjoys snails and bloodworms and seems to be happy in a well-planted environment. A bit territorial, but manageable.
Lucas Vance –
This little fish is a real standout. It’s curious and active, and the beak stays trimmed thanks to its diet. I love how it interacts with the plants and moves around the tank. Perfect for a nano aquarium.