Geoffroy's Side-Necked Turtle (Phrynops geoffroanus)

The Geoffroy's Side-Necked Turtle is a fascinating South American freshwater species known for its distinctive sideways neck-folding behavior, streamlined shell, and active personality. Unlike most turtles that retract their heads straight back, side-necked turtles tuck their necks beneath the edge of their shell, making them a unique addition to any aquatic reptile collection. Hardy and inquisitive, they make an excellent choice for experienced turtle keepers looking for an uncommon species.

Origin:
Native to South America, Geoffroy's Side-Necked Turtles are found throughout river systems in Brazil, Paraguay, Uruguay, Bolivia, northern Argentina, and surrounding regions. They inhabit slow-moving rivers, streams, ponds, and wetlands with abundant basking opportunities.

Diet:
These turtles are omnivorous with a preference for animal protein. A varied diet should include:

• High-quality aquatic turtle pellets

• Earthworms, insects, shrimp, and snails

• Fish (offered occasionally)

• Leafy greens and aquatic vegetation

• Occasional vegetables such as squash or zucchini

Providing a diverse diet helps ensure balanced nutrition and healthy growth.

Recommended Enclosure:

• Juveniles: Minimum 40-gallon aquarium

• Adults: 100–125+ gallon aquarium or indoor pond

• Water depth should allow for easy swimming while still providing resting areas.

• Include driftwood, rocks, and a sturdy basking platform.

Recommended Water Parameters:

• Water Temperature: 75–80°F (24–27°C)

• Basking Temperature: 88–92°F (31–33°C)

• pH: 6.8–7.8

• Powerful filtration is essential, as these turtles produce a significant amount of waste.

• Provide full-spectrum UVB lighting for 10–12 hours daily to support healthy shell and bone development.

Care Tips:

• Perform regular partial water changes to maintain excellent water quality.

• Offer a dry basking area where the turtle can completely leave the water.

• Supplement the diet with calcium as needed to promote healthy shell growth.

• While generally hardy, Geoffroy's Side-Necked Turtles appreciate minimal handling and thrive when given plenty of swimming space and environmental enrichment.

• With proper care, they can live 25 years or more.

Whether you're expanding your aquatic turtle collection or looking for a unique freshwater reptile, the Geoffroy's Side-Necked Turtle offers an engaging display animal with distinctive behavior, attractive appearance, and rewarding long-term care.