Pea Puffer

Carinotetraodon travancoricus

Pea Puffer (Carinotetraodon travancoricus) — Intermediate care, Semi-aggressive, under Other. Minimum tank in the app: 10.6 US gal min; aim for 73–82°F and pH 6.5–8. Details below match the app.

Pea Puffer (Carinotetraodon travancoricus) in a planted freshwater aquarium
Care levelIntermediate
TemperamentSemi-aggressive
Min tank size10.6 US gal min
pH range6.5–8
Temperature73–82°F
Max size1.4 in (3.5 cm)
Captive lifespan5–8 years
SchoolingNo

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Asia

  • East & Southeast Asia

Regional colours match the stocking calculator’s origin map.

Pea Puffer Tank Setup

Plan for at least 10.6 US gal min of water—that is the minimum in our database for a workable setup, not a challenge to crowd fish. Aim to hold 73–82°F and pH 6.5–8 without daily drama. These fish use the Mid zone most, so put wood, plants, or open water there accordingly.

What Do Pea Puffers Eat?

We record diet as Carnivore (snails, crustaceans). Offer a few food types that match—dry, frozen, or gel—and swap now and then. One flake every day for a year is how dull color and gut trouble creep in.

Pea Puffer Tank Mates

Temperament in the data: Semi-aggressive. Flagged as a fin nipper, so long flowing fins and slow targets are a poor match. Treat small tank mates as potential snacks once the fish grows. Smallest puffer. Nips fins aggressively. Will eat snails and small invertebrates. Plug your full stock list into the stocking calculator—single-species compatibility scores are hints, not a whole-tank verdict.

Are Pea Puffers Good for Beginners?

We rate this as intermediate. Budget time for testing, maintenance, and watching behaviour if the water looks fine but the fish do not. If this would be your very first tank, start with something more forgiving and come back to this one.

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

Log tests and reminders in App-aquatic—free, same data you see here.