Red-Eared Slider

Overview

Red-eared sliders (Trachemys scripta elegans) are semi-aquatic freshwater turtles native to the southern United States and Mexico. Hatchlings sold at carnivals and pet stores grow into 8-12 inch adults that live 20-30+ years. They are one of the most commonly surrendered reptiles in North America because keepers do not anticipate adult tank size or lifespan.

Enclosure

Adults require a minimum 75-gallon aquarium per turtle; 100+ gallons is better, and stock tanks or pond setups are ideal. The setup needs both a large swimming area (at least twice the turtle's length deep) and a fully dry basking platform the turtle can completely climb onto. Powerful canister filtration rated for at least double the tank volume is essential because sliders are messy eaters.

Temperature and humidity

Water temperature should be 75-80F (use a submersible heater with a guard). The basking spot should reach 90-95F directly under a heat lamp. Strong UVB (T5 HO or mercury vapor) is required for shell and bone health and must be replaced every 6-12 months even if the bulb still emits visible light.

Diet

Feed a varied diet of high-quality aquatic turtle pellets, dark leafy greens (collard, mustard, dandelion), aquatic plants, and occasional protein items like earthworms or feeder fish. Juveniles eat daily and are more carnivorous; adults shift toward plant-based food and eat every 2-3 days. Avoid feeder goldfish, which carry parasites and contain thiaminase.

Handling and temperament

Sliders are not handling pets. They tolerate brief lifting for tank cleaning or vet visits but stress easily out of water. They can deliver a painful bite when frightened. Observation tanks are the right setup; do not buy a slider as a "play with" pet.

Common health issues

The most common problems are shell rot (from poor water quality), respiratory infections (from low water or basking temperatures), metabolic bone disease (from inadequate UVB or calcium), and vitamin A deficiency (from a pellet-only diet). Sliders can carry Salmonella; always wash hands after contact and never keep them around young children or immunocompromised people.

Vet care disclaimer

This guide is for general reference only. Always consult a qualified exotic veterinarian for medical care or specific husbandry advice.