What Size Tank for a Leopard Gecko

What Size Tank for a Leopard Gecko?

Leopard geckos are a popular pet lizard known for their docile nature, easy care requirements, and unique patterns and colors. When getting a leopard gecko, one of the most important things to consider is what size tank for leopard gecko or enclosure to house them in. Selecting the proper tank size helps ensure your leopard gecko thrives in captivity.

Tank Size Recommendations

Tank Size Recommendations
Tank Size Recommendations

Most experts agree that the minimum tank size for an adult leopard gecko is a 20 gallon long tank, which provides around 30” x 12” of floor space. However, a 30-40 gallon long tank is ideal and provides more room for your gecko to move around and engage in natural behaviors. The general rule of thumb is 10-20 gallons per gecko, depending on their size.

For hatchlings or juvenile leopard geckos under 6 months old, a 10-20 gallon tank is suitable. Once they reach adulthood at around 10-12 months, they should be moved to at least a 20 gallon long enclosure. Tanks that are too large for young geckos can cause them stress.

Some key factors to consider for tank size include:

  • Number of geckos – More geckos require more space
  • Age and size of gecko – Older, larger geckos need bigger enclosures
  • Amount of decor and accessories – Leave room for hides, plants, etc.
  • Opportunity for exercise and enrichment – Bigger is better for an active gecko
  • Heating and humidity needs – Adequate tank size helps maintain optimal environment

Providing Proper Floor Space

Providing Proper Floor Space
Providing Proper Floor Space

Floor space is one of the most important considerations when selecting an appropriate sized tank. Leopard geckos are terrestrial lizards that need room to move around and explore their habitat.

Here are some floor space guidelines:

  • Single adult leopard gecko: 30″ x 12″ floor space (20 gallon long minimum)
  • 2 leopard geckos: 36” x 18” floor space (30-40 gallon long)
  • 3+ leopard geckos: Larger floor space and tank size required

Having adequate floor space prevents your leopard gecko from feeling cramped, allows room for multiple hide boxes and heat zones, and gives them area for natural behaviors like hunting for food. It also prevents them from fighting over territory and resources.

Creating Proper Heating Humidity

Creating Proper Heating Humidity
Creating Proper Heating Humidity

Providing effective heating and humidity is crucial for your leopard gecko’s health, and tank size plays an important role. Small tanks struggle to maintain safe temperature and humidity gradients.

Leopard geckos require:

  • Warm side tank temperature: 88-92°F
  • Cool side tank temperature: 70-75°F
  • Humidity level: 40-60%

A tank that is too small can overheat quickly and won’t retain humidity. Opt for the largest suitable size tank possible to allow for stable heating zones and humidity control. Use multiple hide boxes, an under tank heater, and a hygrometer/thermometer to maintain optimal conditions.

Allowing Enrichment Exercise

Leopard geckos are active, exploratory lizards that need sufficient space to enrich their environment and get exercise. Be sure to provide:

  • Hides and decor for climbing over and crawling through
  • Ramps, platforms, driftwood for climbing
  • Open space for walking and running around
  • Large tank for exploring new areas and hunting food

Lack of enrichment and exercise can lead to stress, poor health, and behavioral issues. A spacious tank allows them to tap into their natural instincts. Upgrade to a larger size as your gecko grows to continually provide enrichment.


When it comes to tank size for a leopard gecko, bigger is usually better, provided the gecko is not too young. Look for a minimum of 20 gallons for an adult, but ideally aim for a 30-40 gallon long tank to give them ample space to thrive. Be sure to factor in the number of geckos, their full grown size, heating needs, humidity, enrichment opportunities, and more when selecting an appropriately sized habitat. With the right tank size and setup, your leopard gecko will live a long, healthy, and happy life!

FAQs About What Size Tank For Leopard Gecko

What is the recommended tank size for a single leopard gecko?

The recommended tank size for a single leopard gecko is a 10-gallon (approximately 20″ x 10″ x 12″) enclosure as a minimum. However, providing a 20-gallon long tank or larger (approximately 30″ x 12″ x 12″) offers more space for enrichment and enhances their well-being.

Can I house multiple leopard geckos in the same tank, and what size is needed?

Yes, you can house multiple leopard geckos together, but it’s crucial to provide additional space. For two geckos, a 20-gallon long tank is appropriate. For every additional gecko, add 5-10 gallons of space. This ensures they have enough room to establish territories and reduces stress.

Are there minimum dimensions I should consider for a gecko tank?

The minimum dimensions for a leopard gecko tank should be at least 20 inches in length, 10 inches in width, and 12 inches in height. These dimensions provide sufficient space for a single gecko’s comfort and well-being.

How does the tank size affect the gecko’s well-being and behavior?

Tank size significantly impacts a gecko’s well-being and behavior. Larger tanks offer more room for exercise, exploration, and natural behaviors. They reduce stress, support physical health, and allow for the creation of a diverse and enriching environment.

Can I use a glass or plastic enclosure for leopard geckos?

Both glass and plastic enclosures can be used for leopard geckos, but glass tanks are more common and readily available. Ensure the chosen enclosure has secure ventilation, is escape-proof, and maintains the appropriate temperature and humidity levels for your gecko’s health and comfort.

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