How Big Does A Bearded Dragon Tank Need To Be


Bearded dragons are fascinating reptiles that have become popular pets in recent years. Their unique appearance, docile nature, and relative ease of care make them a great choice for both beginner and experienced reptile enthusiasts. One of the most important aspects of caring for a bearded dragon is providing them with an appropriate enclosure. In this article, we will explore the question of how big a bearded dragon tank needs to be in order to ensure the health and well-being of these amazing creatures.

The Importance of Proper Enclosure Size

Before we dive into the specifics of tank size, it is crucial to understand why providing a proper enclosure is so important for bearded dragons. In the wild, these reptiles have vast territories to roam and explore. They spend their days basking in the sun, hunting for food, and engaging in various natural behaviors. When kept in captivity, it is our responsibility as caretakers to replicate these conditions as closely as possible.

A bearded dragon's enclosure should not simply be seen as a cage, but rather as their home. It should provide them with enough space to move around, exercise, and exhibit natural behaviors. Insufficient enclosure size can lead to stress, stunted growth, and even physical health issues. Therefore, it is crucial to ensure that the tank size meets the needs of these reptiles.

Factors to Consider When Determining Tank Size

1. Age and Size of the Bearded Dragon

The size and age of the bearded dragon are important factors to consider when determining the appropriate tank size. Hatchlings and juveniles require smaller enclosures, while adult bearded dragons need significantly larger tanks. This is because young dragons are more active and require less space to move around, while adults have larger bodies and need room to stretch and explore.

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As a general guideline, a hatchling bearded dragon will do well in a tank that is at least 20 gallons in size. Once they reach juvenile size, a tank of around 40 gallons is recommended. Adult bearded dragons, on the other hand, need an enclosure that is at least 75 gallons in size. These recommendations provide enough space for the dragons to thrive and exhibit natural behaviors.

2. Enclosure Type and Design

The type and design of the enclosure also play a role in determining the appropriate tank size for a bearded dragon. There are several options available, including glass tanks, PVC enclosures, and custom-built wooden enclosures. Each type has its pros and cons, but what matters most is the overall dimensions and layout of the enclosure.

For example, a 40-gallon tank that is long and spacious may be more suitable for a bearded dragon than a tank with the same volume but a narrow design. Bearded dragons are semi-arboreal creatures, meaning they like to climb and bask on elevated surfaces. Thus, an enclosure that provides enough horizontal and vertical space is essential for their well-being.

3. Supplemental Enclosure Requirements

In addition to the primary enclosure, bearded dragons also require supplemental tanks for specific purposes. These include a separate tank for feeding, a tank for bathing, and a tank for housing multiple dragons. When considering the overall tank size, it is important to account for these additional tanks and factor them into the overall space requirement.

Examples of Appropriate Tank Sizes

To provide a better understanding of the tank sizes required for bearded dragons, let's consider a few examples based on the factors discussed above:

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Example 1: Hatchling Bearded Dragon

A hatchling bearded dragon, measuring around 4 to 5 inches in length, would do well in a 20-gallon tank. This size allows them to have enough space to move around comfortably while also providing ample room for a basking spot, a hiding spot, and a small feeding dish. It is important to remember that as the dragon grows, the enclosure will need to be upgraded accordingly.

Example 2: Juvenile Bearded Dragon

A juvenile bearded dragon, measuring around 8 to 10 inches in length, would require a larger enclosure. A 40-gallon tank is suitable for this stage as it provides more space for the dragon to explore and exercise. The tank should have multiple levels or platforms to accommodate the dragon's climbing instincts. It is also important to create a basking area using a heat lamp or a reptile-specific UVB light.

Example 3: Adult Bearded Dragon

An adult bearded dragon, measuring around 18 to 24 inches in length, needs an even larger enclosure. A tank with a minimum size of 75 gallons is recommended to ensure the dragon's comfort and well-being. This size allows them to have enough room to move about freely, climb, and exhibit natural behaviors. The tank should be equipped with a basking area, multiple hiding spots, and a variety of enrichments such as branches and rocks.


In conclusion, providing a proper enclosure for your bearded dragon is crucial for their health and well-being. The tank size should be determined based on factors such as the dragon's age and size, the type and design of the enclosure, and any supplemental tanks that may be required. By considering these factors and providing an appropriate tank size, you can ensure that your bearded dragon has a comfortable and stimulating home that mimics their natural habitat.

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Remember, the examples provided in this article are general guidelines, and it is important to research and understand the specific needs of your bearded dragon. A well-designed and adequately sized enclosure will not only promote the physical health of your dragon but also contribute to their overall happiness and longevity. So, invest the time and effort into creating a suitable habitat, and enjoy the rewarding experience of caring for these incredible reptiles!


How big does a bearded dragon tank need to be?

The size of a bearded dragon tank depends on the size and age of the dragon. Generally, a minimum tank size of 40 gallons is recommended for adult bearded dragons.


1. How big should a tank be for a baby bearded dragon?
- For a baby bearded dragon, a tank size of at least 20 gallons is recommended.

2. Can I use a glass aquarium as a bearded dragon tank?
- Yes, a glass aquarium is a suitable option for a bearded dragon tank as it provides good insulation and visibility.

3. Is a larger tank better for my bearded dragon?
- Yes, a larger tank is better as it allows your bearded dragon to have ample space for movement and exercise.

4. Can I keep multiple bearded dragons in the same tank?
- It is not recommended to keep multiple bearded dragons in the same tank, as they may become territorial and aggressive towards each other.

5. Can I use a reptile enclosure instead of a tank for my bearded dragon?
- Yes, a reptile enclosure specifically designed for bearded dragons can be used as an alternative to a traditional glass tank. These enclosures often offer better ventilation and customizable features.

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