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Crested Gecko Enclosure Size Calculator — Arboreal Vertical Terrarium

Correct enclosure size for crested geckos by life stage. Arboreal species need vertical orientation. Room temperature (72–78 °F) works in most homes — no heating required.

Calculator

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Minimum enclosure
18″ × 18″ × 24″ minimum (36×18×36 ideal)
29 gal tall or vertical terrarium · vertical orientation (arboreal species)

Setup essentials

  • Ambient temp: 72-78 °F; basking 80 °F max (no heat lamp needed in most US homes)
  • Humidity: 60-80% nighttime, allow drop to 50-60% daytime
  • UVB: 2-5% (optional but beneficial)
  • Substrate: coco fiber or bioactive for adults; paper towel for hatchlings
  • Climbing: cork bark, vines, live plants (Pothos, Bromeliads)
Crested geckos are arboreal — vertical space matters more than floor footprint. Never house two males together (fight).

How to use the crested gecko enclosure calculator

  1. Pick life stage — Hatchling, juvenile, adult — each needs different enclosure size.
  2. Vertical orientation — Taller is more important than wider for arboreal species.
  3. Add climbing structures — Cork bark, vines, live plants, branches at multiple heights.
  4. No heat in most homes — Room temperature 72–78 °F is ideal — avoid overheating.

Crested gecko enclosure by life stage

Life stageSizeEnclosure
Hatchling (0–6 months)2–3 g6-quart tub or 6 × 6 × 12 Exo Terra Nano
Juvenile (6–12 months)5–15 g12 × 12 × 18 Exo Terra Nano Tall
Sub-adult (12–18 months)20–35 g18 × 18 × 24 Exo Terra Small Tall
Adult (18+ months)35–55 g18 × 18 × 24 minimum; 36 × 18 × 36 ideal

Frequently Asked Questions

What size tank does a crested gecko need?

Minimum 18 × 18 × 24 inches for adults (Exo Terra Nano Tall or equivalent). Recommended: 36 × 18 × 36 inches. Crested geckos are arboreal — vertical height is more important than floor space. Adults spend most time climbing and perching, not walking. Small cube-shaped enclosures fail because they lack the vertical territory this species needs.

Do crested geckos need heat?

No — in most US homes. Crested geckos (<em>Correlophus ciliatus</em>) prefer 72–78 °F ambient, matching typical room temperature. Temperatures above 80 °F cause heat stress, reduced appetite, and potentially fatal heat stroke. If your room stays above 80 °F in summer, consider AC or a cooler room rather than adding any heat source. This is one of the few reptiles with NO heating requirements in most homes.

Do crested geckos need UVB lighting?

Current research says yes, low-output UVB is beneficial despite their crepuscular/nocturnal activity. Use a 5–6 % UVB tube (Arcadia ShadeDweller or Zoo Med ReptiSun 5.0) on a 10–12 hour cycle. Dietary vitamin D3 supplementation in their Pangea or Repashy powder covers most needs, but UVB + dietary D3 together produces the healthiest geckos. Old keeping standard said no UVB needed — this is evolving.

What do crested geckos eat?

Complete Meal Replacement Powders (MRPs) like Pangea or Repashy Grubs'N'Fruit or Crested Gecko MRP are the standard diet — nutritionally complete, easy to prepare. Mix with water to pudding consistency, offer in silicone cups 2–3× weekly. Supplement with occasional live insects (crickets, dubia roaches dusted with calcium + D3) 1–2× weekly. Complete diets alone are nutritionally adequate; insect supplementation provides enrichment.

Can crested geckos live in pairs?

Adult females can sometimes cohabit in a large (36 × 18 × 36 or bigger) enclosure with plenty of hiding spots. Males should never live with other males — they fight. Males + females lead to year-round breeding (females lay eggs every 30–45 days) which depletes the female's calcium stores and shortens her lifespan. Solo housing is easiest and safest for individual welfare.

What about humidity and substrate?

Humidity 60–80 % (higher at night, lower during day). Mist enclosure once daily in morning + once evening. Substrate options: coco fiber (ABG mix or plain), moss layer on top for moisture retention, bioactive setup with cleanup crew (springtails, isopods). Avoid sand, wood chips, or calcium sand. Live plants (pothos, bromeliads, schefflera) improve humidity naturally and provide climbing surfaces.

Sources & References

  1. [1]
  2. [2]
    Pangea Crested Gecko Diet — Pangea Reptile
  3. [3]
  4. [4]