

The Pea Puffer (Carinotetraodon travancoricus), also known as the Dwarf Puffer or Pygmy Puffer, is the world's smallest freshwater pufferfish, reaching just about 2.5 cm (1 inch) in length. Native to the rivers and lakes of southwestern India, these vibrant, greenish-yellow fish are adorned with dark spots and exhibit a curious and intelligent demeanor. Despite their diminutive size, Pea Puffers are known for their bold personalities and are a favorite among aquarists seeking an engaging nano tank inhabitant.
Scientific Name: Carinotetraodon travancoricus
Common Names: Pea Puffer, Dwarf Puffer, Pygmy Puffer, Malabar Puffer
Origin: Southwestern India (Kerala region)
Size: Up to 2.5 cm (1 inch)
Lifespan: 4–5 years with proper care
Temperament: Territorial; best kept alone or in species-only tanks
Diet: Carnivorous – prefers live or frozen foods such as bloodworms, brine shrimp, and snails
Water Parameters:
Temperature: 24–28°C (75–82°F)
pH Level: 6.5–7.5
Hardness: 5–15 dGH
Minimum Tank Size: 19 liters (5 gallons) for a single specimen.
Compact Size: Ideal for nano aquariums and small spaces.
Engaging Behavior: Known for their inquisitive nature and interactive behavior with aquarists.
Unique Appearance: Distinctive coloration and eye movement add character to any tank.
Pest Control: Effective at controlling snail populations in aquariums.
Local Availability: Sourced from reputable suppliers within Melbourne, ensuring healthy and acclimated specimens.
Substrate: Fine sand or smooth gravel to mimic natural habitats.
Decor: Incorporate dense planting, driftwood, and caves to provide hiding spots and reduce stress.
Filtration: Gentle filtration system to maintain water quality without creating strong currents.
Lighting: Moderate lighting to support plant growth and showcase the puffer's coloration.
Tank Cover: Secure lid recommended, as they may jump if startled.
Due to their territorial nature, Pea Puffers are best kept alone or in species-only tanks. However, with careful planning and adequate space, they can coexist with certain species:
Kuhli Loaches
Chili Rasboras.
Note: Avoid housing them with slow-moving or long-finned species, as Pea Puffers may nip at fins.
Hornwort
Marimo Moss Balls.
These plants provide shelter and contribute to a healthy tank environment, complementing the Pea Puffer's natural behavior.
Staple Diet: Live or frozen bloodworms, brine shrimp, and snails.
Supplementary Foods: Microworms, daphnia, and other small invertebrates.
Feeding Frequency: Once or twice daily; offer only as much as they can consume in 2–3 minutes to prevent overfeeding.
Q: Are Pea Puffers suitable for beginners?
A: While their care requirements are specific, dedicated beginners can successfully keep Pea Puffers with proper research and commitment.
Q: Can they be kept in planted tanks?
A: Absolutely; they thrive in aquariums with live plants, which provide hiding spots and enhance their natural behavior.
Q: Do they require a heater?
A: Yes, maintaining a stable temperature between 24–28°C (75–82°F) is essential.
Q: How many should be kept together?
A: A single Pea Puffer can be kept in a 5-gallon tank. For multiple puffers, a larger tank with ample hiding spots is necessary to reduce aggression.
Q: Are Pea Puffers available in Melbourne?
A: Yes, they are in-stock and available for in-store purchase in Melbourne.
Bring home the lively Pea Puffer and transform your tank into a hub of activity and charm. Order now from Fish Hut Aqua and experience the joy these delightful fish bring to every aquarist!
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