Moderate

Pea Puffer

By The Aquarium Calculators Editorial Team ·

Carinotetraodon travancoricus

Complete Pea Puffer care guide covering carnivore diet requirements, semi-aggressive temperament, minimum 10 Gallons tank setup, and compatible freshwater tankmates. Difficulty: Moderate.

Pea Puffer

Quick Answer

Pea Puffer (Carinotetraodon travancoricus) is a tiny freshwater pufferfish from India. It requires a minimum 10 Gallons aquarium with a pH of 7.0 - 8.0 and temperature range of 24-28°C. As a carnivore with semi-aggressive tendencies, careful tankmate selection is essential.

Intro

Pea Puffer (Carinotetraodon travancoricus) is a tiny freshwater pufferfish from India. Despite its size, it has a big personality and sharp beak that grows continuously.

Setup

A 10-gallon or larger heavily planted tank with hiding spots. They need a diet of hard-shelled foods (snails, shrimp) to wear down their teeth. Gentle filtration.

Feeding

Carnivorous; eats live snails (pond, bladder, ramshorn), bloodworms, brine shrimp, and blackworms. Will also eat frozen foods. Feed snails regularly.

Compatibility

Semi-aggressive. Best kept in a species-only tank with 1 male per 2-3 females in a 20+ gallon. They can be kept with fast shrimp but will eat babies.

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Tank Position
Middle
Water Temp
24-28°C
Adult Size
See profile
Water pH
7.0 - 8.0

Species Characteristics

Adult Size
Lifespan
Growth Rate
moderate
Tank Compatibility
Community compatible
Indoor Aquarium
Yes

Water Parameters

Water Temperature
Humidity
Water pH

Tank Lighting

Tank Lighting
Standard lighting
Light Hours
N/A
Intensity
moderate

Feeding & Diet

Diet Type
Diet: Carnivore
Feeding Schedule
N/A
Live Food Options
N/A

Frequently Asked Questions

How many Pea Puffers should be kept together?
Keep a group of 4 to 6 individuals in a heavily planted 20-gallon (75 liter) long tank with a footprint of 30x12 inches (75x30 cm). Pea puffers (Carinotetraodon travancoricus) are territorial but can be kept in groups with abundant visual barriers. Maintain a ratio of multiple females per male (3-4 females per male) to reduce male chasing. For a single fish, 5 gallons is adequate. Provide dense planting (Java moss, Vallisneria) and multiple caves. Avoid with slow-moving or long-finned tank mates.
What are the exact water parameters for Pea Puffers?
Target pH 7.0 - 8.0, General Hardness 5 - 12 dGH, Carbonate Hardness 4 - 10 dKH, Total Dissolved Solids 120 - 300 ppm, Electrical Conductivity 250 - 600 μS/cm, and temperature 74°F - 80°F (23°C - 27°C). They are small, intelligent predators that require dense background foliage to prevent boredom and aggression. Maintain nitrates below 15 ppm with weekly 25% water changes. Use a sponge filter with gentle flow. Add driftwood and leaf litter. Avoid copper-based medications.
What is the dietary and medication protocol for Pea Puffers?
They are strict carnivores requiring live or frozen foods (90% protein, 10% fat). Feed small pest snails (bladder, ramshorn), frozen bloodworms, live blackworms, and brine shrimp daily. They need hard-shelled foods to wear down their continuously growing teeth. Feed snails 3-4 times weekly. They refuse flakes and pellets. Medication alert: Sensitive to copper (0.1 mg/L) and formalin. Scaleless; use malachite green at quarter dose (0.025 mg/L). Praziquantel is safe. Avoid salt (tolerance <3 ppt). Quarantine with metronidazole.
How to breed Pea Puffers in captivity?
Condition a group of 5-6 (1 male:4 female) with live blackworms and snails for 4 weeks. Raise temperature to 78°F (25.5°C) and perform 30% water change with cool soft water. Provide dense java moss and spawning mops. The male leads female to moss; female lays 1-5 eggs daily over several days. Remove adults after spawning to prevent egg eating. Eggs hatch in 72-96 hours at 75°F (24°C). Fry are 0.1 inches (2.5 mm); require infusoria for 5 days, then baby brine shrimp and microworms. Snails must be crushed for fry after 2 weeks.