Crested Gecko Tank Size

Q: What size tank does a baby crested gecko need?

10 gallons — 12" × 12" × 18" (vertical). Vertical space for hatchlings up to 6 months

Q: What size tank does a juvenile crested gecko need?

20 gallons — 18" × 18" × 24" (vertical). Mid-sized vertical tank for growing geckos

Q: What size tank does a adult crested gecko need?

30 gallons — 18" × 18" × 36" (vertical). Full-sized vertical terrarium for adult crested geckos

Correlophus ciliatus

The short answer: an adult needs 30 gallons — 18" × 18" × 36" (vertical). Below is what to use at each stage, and why the enclosure type matters as much as the volume.

Baby

10 gal

12" × 12" × 18" (vertical)

Vertical space for hatchlings up to 6 months

Juvenile

20 gal

18" × 18" × 24" (vertical)

Mid-sized vertical tank for growing geckos

Adult

30 gal

18" × 18" × 36" (vertical)

Full-sized vertical terrarium for adult crested geckos

Enclosure type

Tall glass terrarium with front-opening doors and top ventilation

What most people get wrong

Crested geckos are arboreal and require HEIGHT over floor space. Minimum height is 24" for adults, but 36" is ideal. Include live or artificial plants, branches, and vertical hides. Screen top essential for ventilation.

Other species

Bearded Dragon
Leopard Gecko
Veiled Chameleon
Blue Tongue Skink

Need to compare sizes side by side? Use the calculator.