AquaStocker

Pea Puffer Care Guide

Carinotetraodon travancoricus · Moderate care · 5 gallon minimum

Updated June 2026
By the AquaStocker team · How we source our data
Pea Puffer (Carinotetraodon travancoricus)
Photo via Wikimedia Commons 📌 Save

The tiny freshwater dwarf puffer — intelligent and adorable, but nippy; usually a species-only nano tank.

Adult size1.0"
Min tank5 gal
Temp74–82°F
pH6.5–7.5
TemperamentSemi-aggressive
SocialSolitary / pairs
Care levelModerate
DietCarnivore

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How big does a pea puffer get?

A pea puffer (Carinotetraodon travancoricus) reaches about 1.0 inches as an adult. Plan tank size and tank mates around the adult size, not the small fish you buy at the store.

Tank size & setup

Give a pea puffer a minimum of 5 gallons, with water at 74–82°F and a pH of 6.5–7.5. As a moderate-care, carnivore species, a stable, cycled tank with the right diet keeps them healthiest.

Good tank mates

Pair a pea puffer with peaceful species that share its temperature and pH range. Compatible options include:

About the pea puffer

The dwarf pufferfish, also known as the Malabar pufferfish, pygmy pufferfish, or pea pufferfish, is a small freshwater pufferfish endemic to Kerala and southern Karnataka in Southwest India. They are popular in aquaria for their bright colours and small size. At a maximum total length of 3.5 cm, dwarf pufferfish are one of the smallest pufferfish in the world. They closely resemble the related Carinotetraodon imitator, and the two can be difficult to distinguish. C. imitator was not recognised as a different species until 1999.

Recommended gear for pea puffers

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FAQ

What size tank does a pea puffer need?
At least 5 gallons. Bigger is always more forgiving for water quality.
Is the pea puffer good for beginners?
It's a moderate-care species, so dial in a stable, cycled tank and correct water parameters first.

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