A pet yellow-bellied slider turtle

Yellow-Bellied Slider 101: Care, Diet, Tank Setup & More

Yellow-bellied sliders are a popular pet turtle that many owners enjoy. Their high activity level and unique habitat requirements make them stand out in pretty much any home.

But the same traits that make them unique also make them a bit trickier to care for than other turtles. This means you need a strong understanding of the conditions they need if you want to own them!

This guide goes over everything you need to know about yellow-bellied slider care. You’ll learn their diet, tank setup, size, habitat, lifespan, and more helpful facts!

Species Summary

The yellow-bellied slider (Trachemys scripta scripta) is a beautiful aquatic turtle that enjoys the thrill of both land and water!

This species is one of the most popular pet turtles around. With their active lifestyle and beautiful coloration, it’s not hard to see why.

Native to the Southern United States, these turtles are found in a wide range of environments. They are habitat generalists and will make use of any resources around their home. Most often, you can find them swimming through freshwater lakes, ponds, and rivers.

Thanks to their ability to adapt to their surroundings, yellow-bellied sliders do very well in captivity. That is, however, as long as you meet their basic needs!


The average yellow-bellied slider lifespan is between 20 and 30 years. However, it’s not uncommon to see these creatures reaching the ripe old age of 40!

Of course, there’s no way to guarantee that your turtle will live that long. But with good care, you should expect them to be around for at least a couple of decades (which is quite the long term commitment).

Expert Tip: It’s worth pointing out that these turtles are extremely dependant on an optimal habitat to reach their full lifespan potential. Without a well-maintained environment and a healthy diet, these turtles can get sick and die far earlier than they should.

Appearance & Colors

The yellow-bellied slider is aptly named for the look of its plastron (that’s the bottom part of the shell. It’s bright yellow and usually features black spots.

On the top of the shell, also known as the carapace, the turtle is a bit more subdued. The shell is usually dark brown or black. However, vibrant yellow markings add some visual interest.

Yellow-bellied slider climbing on rocks

The same yellow and black striping is present on the skin. For most specimens, the stripes create a beautiful pattern that meets at the nose.

These turtles have interesting feet that reflect their amphibious nature. The feet have long claws, which can help to grip the soil as they make their way on land. However, each toe is webbed to make the turtle a graceful swimmer in the water!

Average Size

The average size of a yellow-bellied slider depends on its gender. This is a species where males tend to be a bit smaller than females.

At most, males will only get to be about nine inches long. Females, on the other hand, can reach lengths of 13 inches!

Yellow-Bellied Slider Care

Yellow-bellied slider care can be a very rewarding experience. However, it’s also tougher than caring for a strictly aquatic or land-dwelling reptile.

While they might adapt well to life in captivity, there are a wide range of different conditions you’ll need to stay on top of. These turtles essentially need two environments in one to stay healthy!

Here are some care guidelines to help you get things just right:

Tank Size & Dimensions

Yellow-bellied sliders require an enclosure that can accommodate the land and water portion of their environment. A standard aquarium can work fine, but there are also turtle-specific tanks that may serve you better.

Some reptile enthusiasts even like to keep their yellow-bellied sliders outside in temperate areas. Needless to say, you have a lot of options when it comes to choosing the right setup!

For a standard aquarium, we recommend getting a tank that’s no smaller than 100 gallons. It should be about 48 inches long and about 12 inches high.

Expert Tip: If you have the ability to get a taller tank we highly recommend it. These turtles do fine in only a foot of water, but larger specimens may prefer depths of 16 to 18 inches.

Tank Setup

The most important thing you need to have in the aquarium is a piece of land. While yellow-bellied sliders will spend most of their time in the water, they use the land to regulate their temperature and bask in the sun.

You can create a piece of land naturally with the substrate material. However, the easiest option is to use a floating perch.

It will follow the waterline and allow your turtle to climb on. Make sure that the perch is big enough. Your turtle should be able to bask comfortably and have some room to turn around.

Trachemys scripta scripta in a tank

Now, onto the water portion of the tank!

On the bottom of the tank, use coated gravel or riverbed sand as your substrate. Make sure to clean it before adding it to the enclosure.

Next, add some plants (they can be real or artificial). Yellow-bellied sliders need plants to feel safe. Get a healthy mix of submerged plants and floating plants to make your turtle feel right at home.

To keep the water in good shape, use a powerful filtration system. You can use a submersible biological filter or a traditional hang-on-back filter. Whatever you choose, go with a model that’s rated to treat about three times the size of the tank.

Yellow-bellied sliders produce a lot of waste. It won’t take much to raise ammonia levels to dangerous levels. A powerful filter will take care of that waste without missing a beat.

Temperature & Lighting

Yellow-bellied sliders are diurnal, which means that they are most active during the day. These turtles rely on amply lighting to regulate their body temperature and stay healthy.

You’ll need two types of lighting: a basking light and a UV light.

The basking light will shine on the land portion of the tank. It should raise ambient air temperatures in that spot to 90 to 100 degrees Fahrenheit.

The UV light is meant to replicate natural sunlight. It provides UVA and UVB rays to promote proper nutrient metabolism (more on that later).

Expert Tip: The UV light should be on for at least 12 hours a day. Make sure to replace the bulb every six months to keep those rays coming!


Unlike other reptiles, you won’t have to worry about humidity levels in your yellow-bellied slider’s habitat. The air in the enclosure will have plenty of humidity already due to the massive swimming area.

If the land portion gets too dry, the turtle will simply take a dip in the water!


The quality of the water in the tank is very important. We recommend using a water conditioner before you introduce your turtle to their habitat. The conditioner will get rid of any chlorine or any other chemicals that could harm your turtle.

Water temperatures should be around 75 to 80 degrees Fahrenheit around the clock. Use a thermometer to check it at night. If temperatures fall below that range, install some submersible heaters to keep conditions stable.

Check your filtration system every two weeks. Replace the filter medium as necessary and use a brush to keep algae levels under control. To keep ammonia and nitrate levels undetectable, perform partial water changes every few weeks.

Yellow-Bellied Slider Diet

In the wild, yellow-bellied sliders are omnivores. They will gladly eat a wide variety of foods in captivity too.

However, it’s best to provide them with a diet that’s centered around plant-based foods when the turtles are adults. A balanced plant-based diet that’s rich in vitamins and nutrients will go a long way in keeping them healthy. 

High-quality commercial turtle pellets fall into this category and can be relied on heavily. To supplement them, provide some leafy greens as well. These turtles enjoy Romaine lettuce, fresh parsley, dandelion greens, and even apples.

Occasionally, you can offer up some live or frozen foods. Yellow-bellied sliders will accept gut-loaded brown crickets and shrimp. Make sure to avoid anything too high in protein or loaded with fat.

Expert Tip: Juvenile turtles should eat two small meals a day. Adults will only need a single hearty meal every day. Provide enough food that they can eat in 15 minutes.

Potential Health Issues

Most health issues are completely avoidable with proper care.

Keeping your turtle’s home in pristine condition is crucial. If you don’t, your turtle could experience several diseases.

Respiratory infections are pretty common. This issue causes wheezing, drooling, and puffiness in the eyes. It’s usually caused by bacteria, so stay on top of habitat maintenance.

A pet yellow-bellied slider turtle

Fungal issues can take hold as well. Fungal spores can develop on your turtle’s back, causing shell rot. This is a potentially dangerous condition that will soften the shell to the point of damage. Luckily, it’s treatable with some antibacterial and antifungal water treatment.

Finally, there’s the chance of metabolic bone disease. This condition affects turtles that don’t have exposure to UV light. Their bodies are unable to metabolize calcium, which results in some serious health problems.

Most reptiles can be affected by metabolic bone disease. However, it’s uniquely detrimental to turtles. It can stunt the growth of the shell, making it more brittle and prone to damage.

Behavior & Temperament

Yellow-bellied sliders are easy-going turtles with a penchant for exploration. Unlike other land-dwelling turtles, this species is not afraid of moving around!

This high level of activity is part of the reason for their popularity. You can look over at their tank and see action at various times throughout the day.

These turtles will regularly swim around the environment. You might see them hiding out in the plants or playing. When they get tired, they’ll retire to the land area of the enclosure for some basking!

These reptiles are most active in the early morning. However, they will move between the water and land to regulate their body temperature throughout the day.

Handling Them

As you probably guessed, yellow-bellied sliders aren’t the most cuddly pets to have around. They do not like being handled and will always prefer to be left alone in their habitat.

It is possible to get your turtle a bit more comfortable with the idea of being held. However, they will never enjoy it.

Handling will almost always cause them stress. If you handle them too much, they might feel the need to bite.

In situations where handling is unavoidable, it’s best to keep it to a minimum. Whenever it is required (like when you’re cleaning the enclosure), immediately move them to a separate container so they don’t get stressed.            


Yellow-bellied slider care might seem a bit daunting at first, but it’s quite manageable once you get the hang of it.

Having a good understanding of what these turtles need to survive will help you make smart care decisions throughout their lives. All of the best owners are extremely knowledgeable and are committed to learning more each and every day.

We know these reptiles are a bit different than many of the others we’ve covered on this site, so feel free to send over questions! We’re always eager to connect and help our readers.