Overview
The dwarf puffer, also called the pea puffer, is the smallest pufferfish on Earth, growing to only about the size of a marble. Unlike most puffers, it lives in fresh water, in the rivers and lakes of the Western Ghats region of southern India. Despite its tiny size, it is a bold and curious little fish with eyes that can swivel to watch you.
These pint-sized puffers are true hunters. They love to chase and eat tiny snails and small live foods, and they refuse to touch most flakes and pellets. They also have plenty of personality, sometimes acting bossy and nipping at tankmates, so most keepers give them their own special species tank.
| Care level | Moderate |
| Adult size | 1 in (2.5 cm) |
| Lifespan | 4-5 years |
| Temperament | Feisty for its size |
| Min. tank | 10 gal (38 L) |
| Temperature | 74-82°F (23-28°C) |
| pH | 7.0-8.0 |
| Diet | Carnivore |
| Schooling | No, keep in a species tank |
Water and tank
A small group of dwarf puffers can live in a tank of about 10 gallons, with a couple more gallons for each extra fish. The water should be clean, warm, and well filtered. Because they can be nippy, many people keep them alone or only with their own kind.
Aquascape and setup
Dwarf puffers love a densely planted tank with lots of plants, moss, and hiding spots to break up sight lines and reduce squabbling. Cover helps shy or bullied individuals stay out of trouble and gives these curious explorers plenty to investigate all day long.
Diet
This is a picky carnivore that usually ignores dry food. Feed it small live and frozen foods such as bloodworms, brine shrimp, daphnia, and, best of all, tiny pest snails. Crunching snails also helps wear down its constantly growing beak-like teeth.
Tankmates and temperament
For their size, dwarf puffers can be feisty and known to nip fins. They are not good community fish, so the safest choice is a species-only tank. If you keep several, add more females than males and lots of plants to spread out any aggression.
A natural snail hunter
Dwarf puffers are famous snail eaters and are sometimes added to tanks just to control pest snails. Watching one stalk and crunch a snail is a real treat. This hunting also keeps their sharp little teeth from growing too long, which keeps them healthy.
Fun facts
- The dwarf puffer is the smallest pufferfish in the world, about 1 inch long.
- Unlike most puffers, it lives entirely in fresh water.
- Its eyes can move independently to watch in two directions at once.
- It eats tiny snails, which helps wear down its ever-growing teeth.
- It comes from the rivers of southern India in the Western Ghats.
Frequently asked questions
Can dwarf puffers live in a community tank?
Usually not. They can be nippy and territorial for their size, so most keepers house them in a species-only tank to keep everyone safe.
What do dwarf puffers eat?
They are carnivores that need small live and frozen foods like bloodworms, brine shrimp, and tiny snails. They usually refuse flakes and pellets.
Why do dwarf puffers need snails?
Crunching snails helps wear down their beak-like teeth, which keep growing. It also gives them a natural food they love to hunt.
Do dwarf puffers really puff up?
They can inflate with water when very stressed or scared, like other puffers, but you should never make them do it, as it is hard on their little bodies.
