Red-tailed green rat snake (Gonyosoma oxycephalum)
Photo: Bjørn Christian Tørrissen / CC BY-SA 4.0 · via Wikimedia Commons

Reptile · Rat snake

Red-tailed green rat snake care guide

Gonyosoma oxycephalum

Advanced

The red-tailed green rat snake is a advanced-level rat snake from Southeast Asia. Adults reach 150–240 cm and live 10–15 years in captivity. Highly arboreal; provide tall cover and seek captive-bred stock. Solitary.

  • Enclosure 150 × 60 × 120 cm
  • Temp Warm 28–30°C, cool 24°C
  • Humidity 60–80%

How much does a red-tailed green rat snake cost in Canada?

Animal$300–800Typical captive-bred price
Bioactive enclosure$1900–3250Enclosure $1050–2000 · equipment $190–420 · bioactive supplies ≈ $700
Yearly upkeep$250–400Food, supplements, bulbs, power, vet fund
First year total$2450–4450All prices CAD, estimates

Red-tailed green rat snake quick facts

Skill level
Advanced
Adult size
150–240 cm
Lifespan
10–15 years
Activity
Diurnal
Native range
Southeast Asia
Minimum enclosure
150 × 60 × 120 cm (59 × 24 × 47 in, ≈ 285 US gal)
Housing
Best kept alone.
Temperature
Warm 28–30°C, cool 24°C
Humidity
60–80%
UVB
Recommended
Diet
Carnivore – frozen/thawed mice and rats
Bioactive style
Tropical arboreal

Red-tailed green rat snake enclosure & bioactive setup

Give one adult at least 150 × 60 × 120 cm (59 × 24 × 47 inches). Best kept alone. This species suits a tropical arboreal bioactive build.

  1. Leaf litter2 cm
  2. Jurassic ABG Terrarium Mix8 cm
  3. Drainage – clay bio balls5 cm

Most of the action is vertical – keep the soil moist but not wet, and focus on perches and dense planting.

Temperature: Warm 28–30°C, cool 24°C. Humidity: 60–80%. UVB: Recommended.

What does a red-tailed green rat snake eat?

Carnivore – frozen/thawed mice and rats. Feed one appropriately sized thawed rodent every 7–10 days.

Handling, temperament & health

Defensive, gapes and strikes; best as a display animal.

Health watch: Watch for dehydration, stress and parasites in imports.

Cleaning & maintenance schedule

Daily

  • Mist to raise humidity – usually a heavy evening misting with a dry-down by day.
  • Check temperatures at perch height.

Weekly

  • Feed; remove uneaten food (and diet dishes after 24–48 h).
  • Check the drainage layer and prune vines.
  • Look for stuck shed on toes and tails.

Monthly

  • Top up leaf litter.
  • Check branches and mounts are still secure.
  • Clean glass, vents and misting nozzles.

Yearly

  • Refresh the top of the soil in open areas.
  • Replace UVB bulbs (if used) on schedule.

Recommended for a red-tailed green rat snake bioactive

Quantities are for one minimum-size enclosure (150 × 60 × 120 cm).

Red-tailed green rat snake FAQ

Is the red-tailed green rat snake good for beginners?

The red-tailed green rat snake is an advanced species – best for experienced keepers. Defensive, gapes and strikes; best as a display animal.

What size enclosure does a red-tailed green rat snake need?

At least 150 × 60 × 120 cm (about 59 × 24 × 47 inches, roughly 285 US gallons) for one adult. Best kept alone.

How much does a red-tailed green rat snake cost in Canada?

Typically $300–800 CAD to buy, about $1900–3250 CAD for a complete bioactive enclosure, and $250–400 CAD a year to keep.

What temperature and humidity does a red-tailed green rat snake need?

Temperature: Warm 28–30°C, cool 24°C. Humidity: 60–80%.

What does a red-tailed green rat snake eat?

Carnivore – frozen/thawed mice and rats. Feed one appropriately sized thawed rodent every 7–10 days.

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This care sheet is general guidance from One Bioactive, not veterinary advice. Needs vary with age, locality and individual animals – confirm with your breeder and an exotics vet. Prices are typical Canadian ranges in CAD and change over time.