How Big Of A Tank Does A Bearded Dragon Need?

Are you unsure of what size tank you need for your bearded dragon?

Do you want to make sure your bearded dragon or beardy, as their owners commonly call them, is going to be happy and healthy in their habitat?

Having the right size tank for your bearded dragon will help guarantee they remain happy and healthy throughout their lives.

An adult bearded dragon will survive best in a tank between a minimum of 50 gallons and 120 gallons, but bigger is better when it comes to picking out a tank.

Continue reading for more information about selecting the right enclosure for your bearded dragon and why it is so important.

how big of a tank does a bearded dragon need

What Is The Best Size Tank For An Adult Bearded Dragon?

When it comes to deciding on the right size enclosure for your adult bearded dragon, it is crucial to remember bigger is better.

For an average-sized adult beardy bred in captivity, a tank should be no smaller than 50 gallons and as large as 120 gallons.

Adult bearded dragons range in size from 16″ to 20″.

In some rare cases, a bearded dragon can grow up to 24″ in captivity and require a 120 gallon size enclosure, like this one found on Amazon.

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Larger tanks will allow full-grown bearded dragons to fully turn around without being restricted by the sides of the enclosure.

It might feel like 120 gallons is too large for a tank, but giving this popular pet room to move will make them happier and healthier.

What Is The Best Size Tank For A Baby Bearded Dragon?

Baby bearded dragons do best in a smaller enclosure to start.

If you are purchasing a baby bearded dragon, a tank between 20 gallons and 40 gallons might work best temporarily.

Some babies could have difficulties catching and eating their food if their enclosure is too large.

A 20 gallon tank is only recommended for a beardy under 10″.

At this stage, the small tank is only temporary, as bearded dragons are known to grow quickly.

Beardies are expected to reach full size around 15 to 18 months old.

If the tank size is not updated as the animal grows, your beardy’s growth could become stunted.

What Size Tank Do I Need For Two Bearded Dragons?

It is not recommended to have two bearded dragons in the same tank.

Beardies like living alone and can get aggressive with others they share a tank with.

Because of their territorial nature, both male and female beardies will puff up their “beard,” open their mouths wide and even hiss when they feel threatened or are challenging other creatures.

It is best to have separate habitats for each bearded dragon.

Why Does The Size Of The Tank Matter?

Having the right size tank will ensure the health and happiness of your new pet.

A tank the right size will allow your bearded dragon room to move, give them space to hide and climb as well as provide a wide range of temperatures within the tank.

If the tank is too small, your young bearded dragon could have their growth stunted, leading to a shortened life.

Bearded dragons are easily stressed, which can cause serious health issues and ultimately shorten their lifespan, but giving them an excellent place to live will reduce their anxiety.

Stress can lead to an unhappy animal with a bad temperament.

And if the temperament if this lizard interests you we have a post on the bearded dragon temperament that really goes into much more detail.

Giving your bearded dragon the best possible home and the right size tank is an excellent way to reduce anxiety in these animals.

Why Is Having A Temperature Range So Important?

A wide range of temperatures is crucial to keeping this Australian native healthy.

Bearded dragons are unable to regulate their body temperature on their own, and because of this, they depend on a variety of temperatures in their environment to help.

Your bearded dragon might move to a warmer section of their enclosure to bask or because the warmth helps to aid with their digestion.

They might want a cooler area to sleep or hide.

With larger tanks, your bearded dragon will have a broader range of temperatures giving them the ability to find the most comfortable temperature for whatever their current needs happen to be.

If a tank is too small, it is likely to be too hot for your pet and will give them no way to cool down when they need to.

What Types Of Tanks Are Available?

There are different sizes and styles of enclosures available for purchase for your bearded dragon.

We have talked about the different gallon sizes of tanks, but there are also tanks with varying openings for access.

Some tanks are an aquarium style with access only at the top of the tank.

With access at the top, be aware some bearded dragons might be afraid as you reach into the enclosure as in the wild attacks often come from above.

Other tanks have doors on the front, which will allow for easy access in feeding and caring for your pet.

While the size of the tank is essential for the health and happiness of your bearded dragon, the type of opening is more of a personal choice.

Tanks also come in a variety of different materials, including glass, melamine, and PVC.

There are many pros and cons to each type of enclosure, ranging from price, weight, and attractiveness.

The tank should have a secure lid as beardies enjoy climbing and could open a loose-fitting top.


We hope now you are able to determine the best size tank for your bearded dragon and why this is so important for the well-being of your pet.

These pets need lots of room to survive, and a full-grown bearded dragon will require an enclosure of at least 50 gallons.

Even though it might seem like a bearded dragon might fit in a smaller tank, a more significant size tank is a great choice and will help keep your beardy happy and healthy throughout its life.

Check out how to pet a bearded dragon.

The Bearded Dragon Handbook

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You’ll save time and money right away with this easy-to-follow digital handbook. This is the guide you’ve been looking for everywhere.


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