20 Gallon Leopard Gecko Tank

The Exo Terra 24″ x 18″ x 12″ Glass Terrarium is the best choice for building a 20 gallon Leopard Gecko tank. 20 gallons is the perfect size to house a couple of adult leopard geckos. In this article, we highlight the characteristics of this terrarium and its shortcomings concerning its closest competitors.

20-gallon Leopard Gecko Tank

Leopard geckos do not require much space. They can live all their lives in a modest 20-gallon tank. If you want to house your pet at the best housing possible, the solution is to get a 20 the terrarium size.

If that’s your intention, there’s nothing better than the Exo terra 20-gallon 24x18x12 terrarium for a 20 gallon leopard gecko tank.

For an inexperienced reptile owner, choosing a reptile tank can be a challenging task.  By now you should know that there are an overwhelming number of options and if you look at the prices, the difference between them is stunning.
The main reason for this price difference is the quality of the product and the reputation behind the brand.

To corroborate this statement, we will now evaluate one of the best reptile tanks on the market: the 20-gallon Terrarium made by the European company Exo Terra.

Exo Terra Med/Low as 20 Gallon Leopard Gecko Tank

In my humble opinion, the perfect 20 gallon enclosure for a leopard gecko is the Exo Terra Outback Terrarium. A fantastic reptile cage built for small ground-dwelling reptiles.

Exo Terra Outback Terrarium 24 inches x 18 inches x 12 inches, inches20 Gallon
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Exo Terra Outback Terrarium 24 inches x 18 inches x 12 inches, inches20 Gallon
  • Front window ventilation
  • Limited edition hand painted Outback 3D Rock Background included
  • Dual doors for an escape-free access
  • Stainless steel mesh cover
  • Closable inlets for wires and/or tubing

You can indeed explore other more economical options, but I suggest that if the price is an issue, you can still opt for the basic 20-gallon terrarium offering. This only differs from the limited version in the design of the terrarium background. If you are still not satisfied, you can opt for the 20-gallon terrariums of other prestigious brands such as Zoo Med or Repti Zoo.
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Item Dimensions
"24 x 18 x 12 Inches"
"24 x 18 x 12 Inches"
"24 x 18 x 18 Inches"
"40.7 pounds"
"33.5 pounds "
"50 pounds"
"22 gallon"
"22 gallon"
"28 gallon"
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22 gallon
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22 gallon
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Why Trust Exo Terra for My 20 Gallons Leopard Gecko Tank?

Exo Terra Terrariums Quality.

To evaluate the quality of an Exo Terra terrarium, several factors must be measured.

  • The first in the list would be the quality of the materials.
  • A second factor would be the practicality of the design.
  • Thirdly we evaluate its appearance and
  • Finally durability and safety.

Size and shape of the terrarium.

One of the main advantages of the Exo Terra 20 gallon terrarium is its large surface area. The 24x18x12 inches terrarium is perfect for housing small ground-dwelling reptiles. The 20-gallon enclosure gives the leopard gecko or any other small not climbing reptile, enough space to thrive.

Value for Money

You need to find a balance between quality and price. Although it should be noted that in the 20-gallon terrarium market, the price difference between a prime terrarium and an average terrarium is just a few bucks. We should consider quality over the economy if we value the safety of our pet and wish that the reptile tank would last several years and make our pet happy. But that is, in the end, something that only you can judge.

Exo Terra 20 gallon Leopard Gecko Tank Assessment.

20 gallon reptile tank

Size and Shape:

  • It serves the needs of small and medium reptiles, such as leopard geckos and baby bearded dragons.
  • Low height makes it particularly suitable for non-climbing reptiles that enjoy burrowing in the substrate.
  • Made entirely of tempered glass and steel.
  • The ventilation system keeps the temperature and humidity steady, preventing fogging.
  • Its raised base is waterproof, so you can easily set up a heating pad under a tank or create a complex tropical ecosystem.
  • This 20-gallon enclosure has a rectangular shape of 24 x 18 x 12 inches.
  • Window ventilation at the front.

Enclosure Durability:

  • Exo Terra terrariums are distinguished by their solidity, stability, and longevity.
    They are made of premium materials of the highest quality, in particular glass that covers the entire terrarium, offering excellent visibility.
    The frame and upper mesh are made of titanium, which is resistant to fatigue and corrosion.
    Minimum maintenance is required.

Reptile Safety:

  • The ventilation system ensures an optimal flow of air within the terrarium.
  • All terrarium maintains the humidity and temperature constant in the terrarium, critical factors for reptile wellbeing.
  • Dual-opening doors for free access to escape. Facilitates the feeding, cleaning, and repair process within the terrarium.
  • Another critical feature that ensures protection when feeding our reptile is the dual door systems, which minimize the exposure area by reducing the chances of our pet or insect escape.
  • Both accesses have a locking mechanism, from the doors, the top mesh, and even the cable entry holes, which prevents access to the inside of the terrarium predators.


  • The only drawback of this terrarium is its price. It’s a little higher than the competition. Although it should be noted that if the Exo Terra 20-gallon outback terrarium is the best one among the 20 gallon leopard gecko tanks, it is reasonable that its price should be higher. As always, quality has its price, and all would agree that it has a fair price in a terrarium that, unless you strike it with a hammer or an earthquake, it will last a lifetime.

A 20 gallon leopard gecko tank is more than a sanctuary for your leopard geckos. Properly decorated, it provides all the comfort and protection that your pet wants. In addition to being easily incorporated with the decoration, add a natural touch to your room, which will be the admiration of your friends and the delight of your children.

Warning: do not host 2 male adult leopard geckos on the same terrarium, they will fight, often to death.

20 Gallon Leopard Gecko Tank Set-Up.

You need the minimum elements required to satisfy the gecko of the leopard. Unfortunately, there is currently no 20-gallon leopard gecko tank on the market. But don’t worry, it’s easy to create a natural habitat and house a few leopard geckos in a 20-gallon enclosure if you know what you need.

Let’s go through the basic needs of your leopard gecko for a bit.

Heat Source:

The leopard gecko needs to live in a temperature range of 78.8 ° F in the cold zone (where we put water and food) to 94 ° F in the hot zone. The suggested method for heating the leopard gecko is to use a heating pad under the tank. These are heat pads that, thanks to the adhesive tape, can be placed on the tank’s bottom or wall.

It should be placed at one end of the reptile tank and should fill 1/3 of the enclosure. I personally recommend the iPower 6 “x 8” Under Tank Heat Pad along with a Digital Thermostat. This set is very high quality, energy-efficient, and safe because it includes automatic temperature control.

The substrate,  Hides, Food, and Water Supply.

The next step is to set the substrate. This should be easy to scrub, non-abrasive, and, above all, dust-free.

Geckos are small animals that were initially living in desert areas. During the day, they used to shelter in cracks and rocks. These reptiles get nervous and avoid eating if they don’t have places to hide. You may use any hollow ornament with an entrance and enough room for these hides, from a small trunk to a plastic tub. Now, if you want to make your 20-gallon terrarium as natural as possible, I suggest that you buy 2 reptile hides on the Amazon, which are excellent replicas and very inexpensive.

In the case of water and food, you can put a water dispenser in the shape of a rock and an anti-exhaustible bowl where you can put your calcium and vitamins. They’re really good at stopping worms from disintegrating all over the terrarium.

Other aspects to keep in mind.

Access is another element to consider. The most common form would be to remove the upper part of the cover. But in the case of Exo Terra terrariums and many other high-end terrariums, entry via the front door is a plus. So if you’re going to buy this terrarium, that’s a bonus.

Even if we don’t want to set up an ecosystem that requires water reserves, it wouldn’t hurt to make sure our terrarium is waterproof. There are incidents and the water bowl will spill. Under the 20 gallon leopard, the gecko tank is the heat pad, and we don’t want the water to get to it at all.

The bottom should be elevated, just enough to allow air to move between the floor and the tank heater. This prevents overheating and potential burns to your reptile. The existence of holes is another feature. They make it possible to connect the cables inside. They are also close to avoid the escape of your pet and the insects that serve as food.