Pig-Nosed Turtle Care Guide (Carettochelys insculpta)

The fully aquatic pig-nosed turtle grows huge, turns aggressive in captivity and is CITES-protected — a long-lived species strictly for advanced keepers.

Overview

The pig-nosed turtle (Carettochelys insculpta) is the sole living member of the family Carettochelyidae. It is named for its fleshy, pig-like snout whose nostrils sit at the tip, and it is the only freshwater turtle with paddle-shaped, flipper-like feet that resemble those of marine turtles. The carapace is grey or olive and leathery, over a cream-colored plastron.

Natural Range & Size

It is native to the larger southward-flowing rivers of New Guinea and Australia's Northern Territory, living in freshwater streams, lagoons and rivers. Adults reach 70 to 75 cm (28 to 30 in) straight carapace length and weigh over 20 kg (44 lb); males have longer, narrower tails.

Aquatic Setup & Filtration

Because it is largely aquatic, the enclosure is essentially an aquarium scaled to a turtle that exceeds two feet — think hundreds of gallons of deep open water for an adult. Good filtration is required to keep the water clean; reptile-keeping guidance favours strong filters backed by regular water changes (at least weekly when filtration is inconsistent).

Basking & UVB / Temperature

Unlike pond turtles it rarely hauls out, but general aquatic-turtle husbandry calls for stable warm water and access to UV light, since glass blocks UV. Aim for a constant warm water temperature (a figure of about 78 °F / 25-26 °C is cited as ideal for aquatic turtles) and provide species-appropriate UV lighting over the tank.

Diet

It is omnivorous. In the wild it eats the flowers, fruit and leaves of figs along with crustaceans, molluscs and insects, so a captive diet should blend plant matter with animal protein rather than relying on either alone.

Health & Longevity

This is a decades-long commitment of a slow-growing, sensitive species. Wild populations declined more than 50% between 1981 and 2011, which underlies its protected status; clean, warm, well-oxygenated water and a varied diet are the foundations of long-term health.

Common Mistakes

• Underestimating adult size and housing it in a tank far too small for a 20+ kg, two-foot animal.
• Cohabiting individuals despite their extreme captive aggression.
• Treating it as a casual pet and ignoring CITES Appendix II paperwork.
• Feeding only animal protein and omitting the plant matter it eats in the wild.