Species profile · Boidae

Sanzinia madagascariensis

Complete care sheet and morph genetics registry for the madagascar tree boa — husbandry parameters, diet, breeding and pairing calculator.

SanziniaSanziBoa arboricole de MadagascarMadagaskar-HundskopfboaMandarin Phase Boa
Adult size
1.2–2.2 m
Lifespan
20–25 yrs
Difficulty
Intermediate
Temperament
Docile
Activity
Nocturnal
Reproduction
Viviparous
01

Husbandry requirements

Madagascar tree boa — origin: Endemic to Madagascar (humid, mid-altitude forests of the East for the green form; drier areas of the West for the mandarin/Volontany form). PROTECTED SPECIES: listed in CITES Appendix I and Annex A of the EU regulation — keeping, import and transfer require CITES documents/intra-EU certificates (CDC/AOE type depending on the country). Acquire only captive-bred animals with traceability; absolutely avoid wild-caught specimens (illegal and fragile)..

Terrarium temperature gradient

Night min22 °C
Cool side23–26 °C
Warm side28–30 °C

A nocturnal forest species: NO intense heliophilic-type hot spot. Maintain a gentle gradient, hot spot 28-30 °C (up to 31 °C occasionally), cool zone 23-26 °C, nighttime drop to around 22-24 °C tolerated and beneficial. Avoid overheating. Always regulate the heating with a thermostat and protect any heat source (risk of burns on a climbing snake).

Enclosure (adult)
120 × 60 × 120 cm

Well-ventilated semi-arboreal terrarium, both tall and offering a good floor area; sturdy horizontal/diagonal branches, vines and hides up high AND on the ground.

Minimum dimensions for an adult of the green form; provide larger (150 x 70 x 120-150 cm) for the Volontany form. This species uses the ground as much as the branches: combine robust perches and ground-level resting areas. Horizontal and vertical thermal gradient, several hides. A well-sealed terrarium (a powerful animal and a good escape artist).

Humidity
60–80 %

Moderate to high humidity: 60-70% during the day, rising toward 75-85% at night and during sheds. Ensure good ventilation to avoid stagnant air (respiratory risk); misting in the evening and a substrate that holds moisture rather than a permanently waterlogged terrarium.

Substrate
Coco fibre (coco humus)Orchid bark / cypress mulchSphagnum moss (humid zones / shedding box)Fertiliser-free forest topsoil

A substrate that retains moisture but drains well, kept humid without being waterlogged. Avoid fine softwood shavings (cedar/pine), which are irritating. Remove droppings regularly to prevent mould and skin infections.

UVB
Optional

Not essential as it is a nocturnal species; a low-intensity UVB source (Ferguson zone 1, T5 5% filtered/at a distance) can benefit the metabolism if the animal can take shelter from it. Provide shaded hides. A regular photoperiod (12 h) is important.

Water source
Always available

A large container of clean water, stable and wide enough to allow a bath and hydration; renew frequently. The animal often drinks the droplets after misting. The water point also contributes to ambient humidity.

Origin
Boidae

Endemic to Madagascar (humid, mid-altitude forests of the East for the green form; drier areas of the West for the mandarin/Volontany form). PROTECTED SPECIES: listed in CITES Appendix I and Annex A of the EU regulation — keeping, import and transfer require CITES documents/intra-EU certificates (CDC/AOE type depending on the country). Acquire only captive-bred animals with traceability; absolutely avoid wild-caught specimens (illegal and fragile).

02

Feeding & health

Diet

Carnivore (mammals and birds) — Appropriately sized rodents (mice, then rats/multimammate mice), thawed; occasionally chicks. In the wild: small mammals, including lemurs, and birds.

Prey of a diameter close to the widest part of the body. Lively feeding response: use long tongs and a feeding signal. Indicative schedule: neonates/juveniles every 5-7 days, subadults every 7-10 days, adults every 10-21 days. Do not overfeed (risk of obesity). The heat-sensitive pits are located BETWEEN the labial scales (not inside them), helping to detect warm-blooded prey in the dark.

Breeding
Viviparous

Reproduction triggered by a seasonal cycle (a drop in temperature and photoperiod in the cool season, ~20-24 °C at night for a few weeks). Gestation of several months. A litter of 4 to 16 neonates. In the Eastern form, a marked ontogenic colour change: born RED/orange, gradually turning green with growth. Breeding a CITES I species entails marking/declaration obligations.

Health watch points
  • Respiratory infections (insufficient ventilation, poorly managed humidity or too low a temperature)
  • Dysecdysis (difficult/incomplete sheds) linked to too low humidity
  • Stomatitis (mouth rot), often secondary to stress or poor conditions
  • Internal and external parasites (especially in wild specimens or poorly quarantined ones)
  • Obesity and regurgitation due to overfeeding or prey that is too large
03

Morphs & genetics

Registry of 2 documented genes for Madagascar tree boa.

  • Axanthic (Hypothetical) aneryRec
  • Melanistic / DarkDom
04

Pairing calculator

Pick each parent's genotype — clutch probabilities update live. Free, no sign-up.

🧬

Madagascar tree boa × Madagascar tree boa

Probabilities per gene (independent loci).

GeneParent AParent B
Expected clutchSelect at least one gene on a parent.
05

Frequently asked questions

Answers to the most common questions about keeping the madagascar tree boa.

How big does an adult Madagascar tree boa get?
An adult Madagascar tree boa typically measures 1.2–2.2 m (total adult length. eastern green form: 1.2-1.6 m. western mandarin/volontany form: 1.8-2.2 m (larger and more massive). a medium to large-bodied species, semi-arboreal (more terrestrial than corallus).).
What temperature and humidity does a Madagascar tree boa need?
A gradient of roughly 23–26 °C on the cool side to 28–30 °C on the warm side. Humidity 60–80 %.
What does a Madagascar tree boa eat?
Carnivore (mammals and birds): Appropriately sized rodents (mice, then rats/multimammate mice), thawed; occasionally chicks. In the wild: small mammals, including lemurs, and birds..
Is the Madagascar tree boa a good reptile for beginners?
Intermediate level. Generally calm and handleable once acclimatised, more docile than a Corallus (Amazon tree boa), but it has a powerful feeding response: separate handling from feeding (hook/signal). Neonates are often nervous and defensive and calm down with age. Non-venomous (constrictor). Plan ahead: a lifespan of 20–25 yrs.

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