Pea Puffer Care Sheet
IntermediateCarinotetraodon travancoricus · fish
Pea puffers are small, intelligent fish that thrive in a heavily planted tank with a diet of live foods. They are best for intermediate keepers due to their specific feeding needs and potential aggression.
Quick care stats
Adult size1-1.5 inches
Lifespan4-5 years
Min tank size10 gallons
Water temp74-82°F
pH6.5-7.5
Hardness5-15 dGH
TemperamentSemi-aggressive; can be nippy, especially among conspecifics; best in species-only tank
Group / schoolingSolo or group of 3+ with plenty of space
Tank matesBest kept alone or with fast, small fish (e.g., danios, rasboras); avoid long-finned or slow fish
DietCarnivorous; requires live foods (snails, bloodworms, brine shrimp) daily; may accept high-quality frozen foods
What you need (full setup)
🔧 Tank (10 gallons or larger)Provides stable environment and space for hiding and swimming🔧 Sponge filter or gentle internal filterPuffers prefer low flow; sponge filter also provides biological filtration🔧 Adjustable heater (50-100W)Maintains stable tropical temperature🔧 Digital thermometerAccurate temperature monitoring🔧 Fine sand substrateMimics natural habitat; puffers like to sift through sand🔧 Water conditioner (dechlorinator)Removes chlorine and chloramines from tap water🔧 API Master Test Kit or similarEssential for monitoring ammonia, nitrite, nitrate, and pH🔧 Dense plants and hardscape (driftwood, rocks)Provides hiding spots, reduces stress, and supports natural behavior
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Common health issues
- Aggression among conspecifics
- Difficulty transitioning to frozen foods
- Susceptibility to internal parasites
⚠️ For any sign of illness (not eating, lethargy, swelling, retained shed), see a qualified exotics vet. Care sheets are general guidance only.