Target Puffer

Adults can reach up to 29 cm, though size may vary depending on origin. Sexual dimorphism is weak; males and females show no obvious differences. The body shape is typical for the family: somewhat ungainly, with small fins and large eyes. When threatened, the fish inflates into a sphere and raises its small spines. Coloration is typically yellowish, with rows of black stripes on the body and a white belly.

This species is native to the western Atlantic along the northern coast of South America: from the Gulf of Paria (Venezuela and Trinidad) to the mouth of the Amazon River in Brazil, including Guyana, Surinam, and French Guiana. An earlier misconception placed it in Indian Ocean waters, and this error occasionally persists. The target puffer inhabits brackish waters: river mouths, mangrove swamps, estuaries, and shallow lagoons.

Young fish school together for safety, but as they mature they become solitary. The target puffer shows marked aggression toward both its own kind and other fish species, requiring isolation in a dedicated tank. It may be possible to keep it with other brackish-water species only in very large tanks exceeding 1000 litres.

A single target puffer requires an aquarium of at least 648 litres. Décor can be relatively simple: use driftwood to create mangrove-like conditions, along with soft substrate, rounded stones, and rock formations. Live plants are not essential. Water must be brackish at about 10 g/L salinity. It is critical to prevent organic waste accumulation, likely with a meat diet, so a powerful filtration system is essential. Weekly maintenance consists of 30–50% water changes and cleaning of the substrate and décor.

This carnivore feeds on molluscs and crustaceans in nature. In the aquarium, offer similar foods, live or frozen. Hard components—those containing shells—must be included. Pufferfishes have two plates forming the mouth apparatus, known as 'teeth'. These teeth grow throughout life and are worn down by feeding. Feeding only soft food can cause serious health problems.

Breeding in the aquarium is not documented. The species is tied to brackish estuarine waters of the Amazon and Orinoco rivers, where reproduction occurs. It is not popular in the hobby and no breeding work has been published.

This species does not breed in captivity, and most individuals come from the wild. New fish may struggle to acclimate, so provide water parameters identical to those in which it was kept before purchase. Failure to do this significantly increases the risk of skin disease. Another potential problem is overgrown 'teeth', which can eventually prevent feeding. In good conditions, health problems are usually absent.

When buying a target puffer, choose active fish with clean fins and no visible damage. Ensure the fish shows interest in food and shows no signs of poor condition; pufferfishes often suffer from inadequate feeding in the trade. Because this species is rare in commerce and adaptation can be difficult, buy from reputable suppliers or specialist clubs.