Pet Health

What Should I Feed My Red-Eared Slider Turtle?

Discover the best diet for your red-eared slider turtle! Learn about essential foods, feeding tips, and how to keep your pet healthy and happy.
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
Colorful assortment of red-eared slider turtle food options including pellets, leafy greens, and vegetables on a wooden table.

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Red-eared slider turtles are fascinating pets, but figuring out what to feed them can feel overwhelming. With so much information online, it’s hard to know what’s accurate and safe. As a pet parent, you want to provide a balanced diet to keep your turtle healthy and thriving. Let’s break it down step-by-step, so you can feel confident about your red-eared slider’s diet.

🩺 Vet Insight

Red-eared sliders are omnivorous, meaning they eat both animal and plant-based foods. However, their dietary needs change as they age. Younger turtles are more carnivorous, requiring higher protein levels, while adults lean toward a more herbivorous diet. Offering a variety of foods ensures they get the nutrients they need.

In captivity, their diet should mimic what they would eat in the wild. This includes a mix of protein sources, leafy greens, and commercial turtle pellets designed specifically for aquatic turtles. Aim for a diet that’s approximately:

  • 50% animal protein (for juveniles) or 25% animal protein (for adults)
  • 50% leafy greens and vegetables (adults may need up to 75%)
  • Small amounts of fruit as an occasional treat

Freshwater turtles like red-eared sliders also need calcium to maintain strong shells and healthy bones. Providing a calcium supplement or cuttlebone in their habitat is essential.

⚠️ Ingredients to Avoid

Not all foods are safe for your red-eared slider. Some can cause digestive issues, while others may even be toxic. Avoid feeding your turtle the following:

  • Processed human foods like chips, bread, or pasta
  • Raw meat or poultry (risk of bacterial contamination)
  • Dairy products (turtles can’t digest lactose)
  • Iceberg lettuce (low in nutrients)
  • Rhubarb, avocado, and onion (potentially toxic)

According to the ASPCA, feeding turtles inappropriate foods can lead to health problems like shell deformities or organ damage (source).

✅ Safer Alternatives

Now that you know what to avoid, let’s focus on the best options for your red-eared slider. Here’s a breakdown of safe and nutritious foods:

  • Commercial Pellets: High-quality turtle pellets should make up a significant portion of their diet. Look for pellets formulated for aquatic turtles, as these are fortified with essential vitamins and minerals.
  • Protein Sources: Juvenile turtles benefit from protein-rich foods like feeder fish, earthworms, crickets, bloodworms, and shrimp. Cooked eggs or boiled chicken (in small amounts) can also be offered occasionally.
  • Leafy Greens: Kale, collard greens, mustard greens, and dandelion greens are excellent choices. These are packed with calcium and other nutrients.
  • Vegetables: Offer shredded carrots, zucchini, or squash. These add variety and additional fiber to their diet.
  • Fruits: While not a staple, small amounts of fruits like berries, melon, or banana can be given occasionally as treats.

It’s important to offer foods in bite-sized pieces and remove any uneaten portions from the tank to maintain water quality.

💡 Final Advice

Feeding your red-eared slider doesn’t have to be complicated. With the right mix of commercial pellets, fresh greens, and protein sources, you can provide a balanced diet that supports their health. Always monitor their eating habits and adjust portions based on their age, size, and activity level.

Lastly, remember that diet is just one aspect of turtle care. A clean habitat, proper UVB lighting, and regular vet check-ups are equally important to ensure your turtle’s long-term health and happiness.

FAQs

Q: How often should I feed my red-eared slider?
A: Juvenile turtles should be fed daily, while adults can be fed every two to three days. Always remove uneaten food after feeding to keep the tank clean.

Q: Can red-eared sliders eat fish?
A: Yes, they can eat small feeder fish like guppies or minnows as part of their diet. However, avoid overfeeding fish, as it can lead to an unbalanced diet.

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References

While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
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