Pea Puffer Care Guide
Carinotetraodon travancoricus · Freshwater Fish
What Pea Puffer look like
The Pea Puffer, scientifically known as Carinotetraodon travancoricus, exhibits a small, rounded body that is laterally compressed, typically reaching a maximum adult size of 1.5 to 2 inches (5-15 cm). This species displays sexual dimorphism, with males generally being slightly smaller and exhibiting more vibrant coloration compared to females, especially during breeding periods. The Pea Puffer is equipped with a unique beak-like dentition, consisting of four fused teeth that allow it to efficiently crush hard-shelled invertebrates. Its skin is adorned with a range of colors, predominantly olive green to yellowish, often featuring intricate patterns of spots and blotches that provide camouflage among aquatic vegetation. Notably, this species possesses a small, rounded dorsal fin and a well-developed adipose fin, contributing to its agile swimming capabilities. Defensive adaptations include the ability to inflate its body by swallowing water, making it less palatable to potential predators.
Behavior & temperament
The Pea Puffer is primarily a solitary species, although it can exhibit social behaviors when kept in groups, particularly in larger aquaria. It typically occupies the lower to mid-water column, favoring densely planted areas where it can forage and hide. In terms of breeding behavior, the Pea Puffer is an egg scatterer, with females laying adhesive eggs on plants or substrate, which the males then fertilize. This species is known for its curious and interactive temperament, often displaying playful behaviors, but can exhibit territorial aggression, particularly towards conspecifics and other small fish that invade its space.
Diet & feeding
In the wild, the Pea Puffer is an omnivore, primarily feeding on small invertebrates, such as snails and crustaceans, as well as plant matter. In captivity, it requires a varied diet that includes high-quality pellets, frozen or live foods such as brine shrimp, and occasional vegetable matter to ensure optimal health.
Behind the name
Carinotetraodon (from Latin 'carina' meaning 'keel' and Greek 'tetra' meaning 'four' and 'odous' meaning 'tooth') refers to the species' distinctive tooth structure.
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Pea Puffer?
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