Eyelash viper (Bothriechis schlegelii)
Photo: Alejandro Arteaga, R. Alexander Pyron, Abel Batista, Jose Vieira, Elson Meneses / CC BY 4.0 · via Wikimedia Commons

Reptile · Venomous snake

Eyelash viper care guide

Bothriechis schlegelii

ExpertMedically significant venomMay need a permit

The eyelash viper is a expert-level venomous snake from S Mexico to N South America. Adults reach 45–80 cm and live 15–20 years in captivity. Arboreal; plan servicing so hands never pass under perches.

  • Enclosure 60 × 45 × 90 cm
  • Temp 24–28°C
  • Humidity 70–90%

How much does a eyelash viper cost in Canada?

Animal$300–800Typical captive-bred price
Bioactive enclosure$770–1350Enclosure $300–570 · equipment $190–420 · bioactive supplies ≈ $300
Yearly upkeep$200–400Food, supplements, bulbs, power, vet fund
First year total$1270–2550All prices CAD, estimates

Eyelash viper quick facts

Skill level
Expert
Adult size
45–80 cm
Lifespan
15–20 years
Activity
Nocturnal
Native range
S Mexico to N South America
Minimum enclosure
60 × 45 × 90 cm (24 × 18 × 35 in, ≈ 64 US gal)
Housing
Best kept alone.
Temperature
24–28°C
Humidity
70–90%
UVB
Recommended
Diet
Carnivore – frozen/thawed mice
Bioactive style
Tropical arboreal

Eyelash viper enclosure & bioactive setup

Give one adult at least 60 × 45 × 90 cm (24 × 18 × 35 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: 24–28°C. Humidity: 70–90%. UVB: Recommended.

Some Canadian provinces and many municipalities restrict or ban this species. Check your local bylaws and any provincial permit rules before buying.

What does a eyelash viper eat?

Carnivore – frozen/thawed mice. Feed one small thawed mouse every 10–14 days.

Handling, temperament & health

Arboreal ambush predator; never free-handle.

Health watch: Watch for dehydration and regurgitation.

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 eyelash viper bioactive

Quantities are for one minimum-size enclosure (60 × 45 × 90 cm).

Eyelash viper FAQ

Is the eyelash viper good for beginners?

No – the eyelash viper is a specialist animal for expert keepers only. Arboreal ambush predator; never free-handle.

What size enclosure does a eyelash viper need?

At least 60 × 45 × 90 cm (about 24 × 18 × 35 inches, roughly 64 US gallons) for one adult. Best kept alone.

How much does a eyelash viper cost in Canada?

Typically $300–800 CAD to buy, about $770–1350 CAD for a complete bioactive enclosure, and $200–400 CAD a year to keep.

What temperature and humidity does a eyelash viper need?

Temperature: 24–28°C. Humidity: 70–90%.

What does a eyelash viper eat?

Carnivore – frozen/thawed mice. Feed one small thawed mouse every 10–14 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.