Yellow-Bellied Slider (Trachemys scripta scripta) Care Guide

Care for a yellow-bellied slider: a roomy heated aquatic tank, a dry basking platform under UVB and heat, strong filtration, and a 30-plus year commitment.

Overview

The yellow-bellied slider (Trachemys scripta scripta) is a semi-aquatic freshwater turtle, a close relative of the red-eared slider. It is recognised by its mostly yellow plastron with black edge spots, an 'S'-shaped yellow facial stripe and question-mark belly markings. Like all sliders it basks heavily and needs both water and land to stay healthy.

Natural Range & Size

It is native to the southeastern United States, from southeastern Virginia through the Carolinas, Georgia and eastern Alabama to northern Florida. It lives in slow-moving rivers, floodplain swamps, marshes, seasonal wetlands and permanent ponds with dense aquatic vegetation.

Males typically reach 5-9 in (13-23 cm); females 8-13 in (20-33 cm).
Lifespan: over 30 years in the wild and over 40 years in captivity.
Basks frequently on shore, on logs, or while floating.

Aquatic Setup & Filtration

Use the slider rule of about 10 gallons of water per inch of shell; a single adult needs at least a 125-gallon tank, with roughly 15 gallons added per extra turtle. Because sliders foul water quickly, an external canister filter is essential for adults to keep the water clean and reduce bacteria.

Basking & UVB / Temperature

A dry basking platform lets the turtle climb fully out, dry its shell and reach the heat it needs for digestion. UVB lighting enables vitamin D3 synthesis and calcium absorption for a strong shell and bones.

Water temperature: about 72-76 F (22-24 C) for adults.
Basking surface temperature: about 88-92 F (31-33 C).
Provide both UVA and UVB lighting over the basking site.

Diet

Diet shifts with age. Hatchlings are almost entirely carnivorous, eating insects, crustaceans, tadpoles, small fish and carrion. As they mature they become largely herbivorous, with up to about 95% of nutrition eventually coming from plants, though they stay omnivorous. Offer plenty of aquatic greens to adults and protein to juveniles.

Health & Longevity

A well-kept yellow-bellied slider lives well over 30 years, so adoption is a long commitment. Insufficient UVB or a poor diet leads to metabolic bone disease and shell deformity, while dirty water causes shell rot and skin infections. As with all turtles, practise strict hygiene because of salmonella risk.

Common Mistakes

Underestimating adult female size and using too small a tank.
No dry basking platform or no heat lamp above it.
Omitting UVB lighting, causing soft shell and bone disease.
Feeding adults a high-protein diet meant for juveniles.