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Pythonidae

Green Tree Python

Morelia viridis
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AdvancedNocturnal · sleeping nowCITES IIHuman-verified sheet
14:00
Day

Drag the sun. Green Tree Python is nocturnal, so what it is doing changes with the light. The sheet states a night temperature, and the rail follows it.

Temperature

28–31°Ambient
≥22°Night floor

One ambient band, 28–31°C, dropping to no lower than 22°C at night.

Humidity

40–70%Target RH

UVB

Optionalbeneficial
Check your setup against this sheet
Green Tree Python (Morelia viridis), illustration 1
Illustration

These are computer-made illustrations, not photographs. No animal was handled, moved, lit or disturbed to produce them, which is the point: an animal photographed for a care guide is an animal taken out of its enclosure.

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The numbers

Enclosure
90 × 60 × 60 cm
Diet
Rodents (mice → small rats) · Every 10–14 days
Temperature
warm 28–31 °C (82–88 °F) day / night ≥ 22 °C (not below)
Humidity
40–70% (dry down between mistings)
UVB
Low-level beneficial

Identity

Family / Order
Pythonidae / Squamata
Adult size
150–180 cm
Lifespan (captivity)
15–20+ yrs
Activity
Nocturnal; arboreal
Temperament
Display species; can be defensive; not for handling
Price (THB)
~8,000–40,000+ (locality-dependent)

Enclosure and conditions

Warm side / basking
28–31 °C (82–88 °F) day
Night
≥ 22 °C (not below)
Humidity
40–70% (dry down between mistings)
UVB
Low-level beneficial
Min. size
90 × 60 × 60 cm with perches at basking height
Furnishings
Sturdy horizontal perches (they coil on branches)
Substrate
Coco / bioactive
Water
Bowl + misting

Diet

Staple
Rodents (mice → small rats)
Prey size
≈ girth of the snake
Method
F/T, thawed to ~38 °C, offered at night with tongs
Juveniles
Every 5–7 days
Adults
Every 10–14 days

Behaviour and handling

Handling
Minimal — defensive display animal; use a hook/perch
Perching
Iconic coiled-on-branch resting posture
Cohabitation
Individual
Defense
Strikes readily; sharp teeth
Ontogenetic color change
Hatchlings yellow/red → turn green

Reproduction

Sexual maturity
♀ ~2.5–3 yrs
Clutch
6–25 eggs
Incubation
~50 days at ~31 °C
Breeding trigger
Seasonal cooling

Common health problems

Respiratory infection
Signsopen-mouth breathing, mucus
Preventcorrect temps + ventilation
Scale rot
Signswet dirty substrate
Preventkeep clean; spot-clean perches
Regurgitation
Signshandling too soon / oversized prey
Preventwait 48–72 h; size prey correctly
Stuck shed
Signslow humidity
Preventmisting cycles + humidity

When to see a vet

This is not veterinary advice. If red flags appear (open-mouth breathing, months of weight loss, 'stargazing', persistent regurgitation) consult a qualified exotic (herp) veterinarian. Quarantine new arrivals 30–90 days.

Good to know

  • Hatchlings emerge bright yellow or red and turn green with age (ontogenetic change).
  • Rests in a signature saddle coil draped over a branch.
  • A living jewel — a premium arboreal display python.

Common questions

Can I handle it?

Best kept as a hands-off display snake.

Why is my baby yellow?

Normal — it will turn green with age.

Beginner snake?

No — an advanced, display-oriented python.

What it needs

  • Arboreal enclosure 90×60×60
  • Sturdy perches
  • Misting system/hygrostat
  • Radiant heat + thermostat
  • Coco substrate
  • Water bowl
  • Low UVB
  • F/T rodents + long tongs

Others in this group

Sources