What Size Tank For A Red Eared Slider Turtle?

If you’re looking for a new pet, a red-eared slider turtle might be the perfect addition to your family. But once you’ve decided to get one, you’ll face the challenge of finding the right size tank to house your new companion. In this article, we’ll provide all the information you need to make sure your red-eared slider turtle is comfortable and happy in its new home.

What Size Tank for a Red Eared Slider Turtle?

What Size Tank for a Red Eared Slider Turtle?

A Red-Eared Slider Turtle is one of the most popular pet turtles in the world. They can be a wonderful addition to any home, but it is important to make sure you have the right size tank for them. This article will explain what size tank you need for a Red-Eared Slider Turtle.

Factors to Consider When Choosing a Tank

When selecting a tank, there are several factors to consider. The size of the turtle, age, and activity level will help determine the tank size that is best for your pet. Additionally, the type of tank, such as a glass or plastic tank, will also affect the size you select.

Size of Turtle

The size of the turtle is one of the most important factors when choosing a tank for your pet. A baby Red-Eared Slider Turtle will need a much smaller tank than an adult. For a baby turtle, a 10-gallon tank is usually sufficient. As the turtle grows, the tank size should increase. An adult turtle should have a tank that is at least 55 gallons.

Age of Turtle

The age of the turtle is another important factor when choosing a tank. Young turtles are still growing, so they will need more room to move around and explore. An adult turtle, on the other hand, will not need as much room, as they have already reached their full size.

Activity Level

The activity level of the turtle is also a factor to consider when selecting a tank. If the turtle is very active, it will need more room to explore and swim. For a less active turtle, a smaller tank may be sufficient.

Type of Tank

The type of tank you select will also affect the size you need. A glass tank will require a larger tank than a plastic tank, due to the added weight of the glass. Additionally, the shape of the tank will also affect the size. A round tank will require more room than a rectangular tank.

Tank Accessories

In addition to the size of the tank, you will also need to consider what type of accessories you will need. A filter and heater are essential for a healthy environment for your pet. A basking light may also be necessary, depending on the type of habitat you create.

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A filter is an essential part of any turtle tank. It will help keep the water clean and free of debris, and will also help to keep the water oxygenated. There are several types of filters available, such as internal filters, external filters, and submersible filters.


A heater is also necessary for the health of your turtle. The water temperature should be kept between 75 and 80 degrees Fahrenheit, and a heater will help ensure this temperature is maintained.

Basking Light

A basking light is also important for the health of your turtle. It will help provide the necessary warmth and light for the turtle, and will also help to simulate their natural environment.


Choosing the right size tank for a Red-Eared Slider Turtle is essential for the health and wellbeing of your pet. The size of the turtle, age, activity level, type of tank, and accessories will all affect the size of the tank you need. With the right tank, your turtle will be happy and healthy for many years to come.

Related Faq

What size tank does a red eared slider turtle need?

The minimum tank size for one red eared slider turtle is 20 gallons. This is the size of tank recommended for juveniles up to four inches in length. As the turtle grows, the tank size should be increased accordingly. An adult red eared slider turtle will need a tank at least 55 gallons in size, as these turtles can grow up to 12 inches in length.

Providing a larger tank will help to ensure the turtle has enough room to swim, bask and explore. It will also help to maintain water quality and reduce the amount of maintenance needed to keep the tank clean.

What type of water do red eared slider turtles need?

Red eared slider turtles need a water environment that is clean and well-oxygenated. The water should be between 75 to 86 degrees Fahrenheit and it should be deep enough for the turtle to swim in. A water filter should be used to keep the water clean and free of toxins.

In addition to the water filter, the tank should have areas to bask in the light and places for the turtle to hide and rest. This will help to keep the turtle healthy and provide it with a more natural environment. Adding gravel and rocks will also help to make the tank look more natural.

How often should the tank water be changed?

The water in the tank should be changed regularly. It’s recommended to change at least 25 to 30 percent of the water every week. This helps to keep the water clean and free of toxins. When changing the water, it’s important to use dechlorinated water to ensure the turtle is not exposed to any chemicals.

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It’s also important to clean the tank regularly. This includes scrubbing any algae, scooping out any waste and debris and removing any uneaten food. Regular cleaning will help to keep the tank looking nice and will also help to keep the water clean.

Do red eared slider turtles need a basking light?

Red eared slider turtles need a basking light to provide them with the necessary warmth and light to stay healthy. The temperature in the basking area should be between 85 and 90 degrees Fahrenheit. A full-spectrum light should be used to provide the turtle with the necessary UVB and UVA rays.

The light should be kept on for 12 hours a day and then turned off at night. This will simulate the natural cycle of light and darkness, which helps to keep the turtle healthy. The light should be positioned above the basking area, so the turtle can get enough heat and light.

Can red eared slider turtles live together?

Red eared slider turtles can live together if they are the same size. It’s best to keep only one turtle per 10 gallons of water. If the turtles are different sizes, they should be kept in separate tanks. This will help to prevent the larger turtle from bullying the smaller one.

It’s important to provide enough space, hiding spots and basking areas for each turtle. This will help to reduce the amount of stress and fighting between them. It’s also important to monitor the turtles regularly, to ensure they are all healthy and happy.

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In conclusion, when deciding on the size of your tank for a red-eared slider turtle, it’s important to consider the size of the turtle, the type of filter you will use, and the type of substrate you will use. A larger tank allows for more swimming space and is generally better for the overall health of the turtle. You should also consider adding decorations such as rocks, plants, and driftwood to make the turtle’s home more interesting. With the right planning and setup, a red-eared slider turtle can live a happy and healthy life in a tank of the appropriate size.

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