Answer
What size tank does a leopard gecko need?
An adult leopard gecko needs at least a 36 × 18 × 18 in enclosure (3 × 1.5 × 1.5 ft, about 50 gallons of space).
Open the reptile tank calculator
Common tanks compared
| Tank | Size (in) | Meets minimum? |
|---|---|---|
| 20 high | 24 × 12 × 16 | No |
| 20 long | 30 × 12 × 12 | No |
| 29 gallon | 30 × 12 × 18 | No |
| 40 breeder | 36 × 18 × 16 | No |
| 55 gallon | 48 × 13 × 21 | No |
| 75 gallon | 48 × 18 × 21 | Yes |
| 90 gallon | 48 × 18 × 24 | Yes |
| 125 gallon | 72 × 18 × 21 | Yes |
| PVC/front-opening enclosure | 36 × 18 × 18 | Yes |
ReptiFiles calls 4 × 2 × 2 ft the best option; bigger is better if it’s set up properly.
More questions
Is a 20-gallon tank enough for a leopard gecko?
Not for an adult: a 20-gallon long is about 19 gallons of space and 30 × 12 in of floor, smaller than the 36 × 18 in minimum.
Do leopard geckos need a tall tank?
No: they live on the ground, so floor space matters more than height.
How many gallons does a leopard gecko need?
About 50 gallons of space: a 36 × 18 × 18 in enclosure.
Can a baby leopard gecko live in a smaller tank?
For a short time, yes, but most keepers buy the adult size from the start and add plenty of hides.
Does a leopard gecko need a tall enclosure?
Height matters less than floor space for ground-dwellers; climbers such as crested geckos need the height.
Is a front-opening enclosure better?
Many keepers prefer front opening: it is less stressful than reaching in from above.
Do I need to measure inside or outside?
Inside dimensions are what the animal gets; glass tanks are listed by outside size.
Where do these minimums come from?
From the keeper-care sources linked below; the reptile tank tool checks your own enclosure against them.
Citing this? Link to https://tools.thesturdypaw.com/answers/leopard-gecko-tank-size/. Free to reuse with a link (CC BY 4.0).
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