Reptile · Gila monster & beaded lizard
Mexican beaded lizard care guide
Heloderma horridum
The mexican beaded lizard is a expert-level gila monster & beaded lizard from Pacific Mexico, Guatemala. Adults reach 60–90 cm and live 20–30 years in captivity. Larger than Gila monsters; venomous and permit-only in many areas.
- Enclosure 240 × 120 × 75 cm
- Temp Basking 32–35°C, cool 22°C
- Humidity 40–60%
How much does a mexican beaded lizard cost in Canada?
Mexican beaded lizard quick facts
- Skill level
- Expert
- Adult size
- 60–90 cm
- Lifespan
- 20–30 years
- Activity
- Diurnal
- Native range
- Pacific Mexico, Guatemala
- Minimum enclosure
- 240 × 120 × 75 cm (94 × 47 × 30 in, ≈ 571 US gal)
- Housing
- Best kept alone.
- Temperature
- Basking 32–35°C, cool 22°C
- Humidity
- 40–60%
- UVB
- Recommended
- Diet
- Carnivore – mice, rats, eggs
- Bioactive style
- Semi-arid
Mexican beaded lizard enclosure & bioactive setup
Give one adult at least 240 × 120 × 75 cm (94 × 47 × 30 inches). Best kept alone. This species suits a semi-arid bioactive build.
- Leaf litter2 cm
- Jurassic ABG Semi-Arid Blend12 cm
- Base layer – packed coco fibre8 cm
No drainage layer – water deeply but rarely so the bottom stays slightly moist while the surface stays dry. This species digs, so give it 20 cm (8 in) of substrate in total. Only the top 12 cm needs to be bioactive soil; the 8 cm underneath can be cheaper coco fibre, dampened and packed firm.
Temperature: Basking 32–35°C, cool 22°C. Humidity: 40–60%. 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 mexican beaded lizard eat?
Carnivore – mice, rats, eggs. Adults every 2–3 weeks, juveniles weekly.
Handling, temperament & health
Venomous; use hooks and never free-handle.
Health watch: Obesity and kidney problems.
Cleaning & maintenance schedule
Daily
- Check basking surface temperature with an infrared thermometer.
- Keep the humid hide damp; refresh water.
Weekly
- Spot-clean waste.
- Every 1–2 weeks, pour water down into the soil around plants and in the cool corner.
Monthly
- Check stones and wood are stable and can’t be tunnelled under.
- Add a few leaves to the cool corner for isopods.
Yearly
- Refresh the top layer in the basking area.
- Replace UVB bulbs on schedule.
Recommended for a mexican beaded lizard bioactive
Quantities are for one minimum-size enclosure (240 × 120 × 75 cm).
Jurassic ABG Semi-Arid Blend
Bioactive top layer, 12 cm
Canyon Sand
Optional: mix in for a firmer, sandier texture
Premium Coconut Fiber
Base layer, 8 cm – dampen and pack firm so burrows hold
Eastern Oak Leaves 10/Pack
Leaf litter – food and cover for the clean-up crew
Terrarium Moss 7L Bag
Humid hide moss
Cork Bark Half Rounds
A hide at each end – plus one humid hide filled with damp moss
Mopani Wood
Climbing and a raised basking spot
Carnelian Stone
Holds heat under the lamp – place directly on the enclosure floor
Mexican beaded lizard FAQ
Is the mexican beaded lizard good for beginners?
No – the mexican beaded lizard is a specialist animal for expert keepers only. Venomous; use hooks and never free-handle.
What size enclosure does a mexican beaded lizard need?
At least 240 × 120 × 75 cm (about 94 × 47 × 30 inches, roughly 571 US gallons) for one adult. Best kept alone.
How much does a mexican beaded lizard cost in Canada?
Typically $1500–4000 CAD to buy, about $3130–5410 CAD for a complete bioactive enclosure, and $400–600 CAD a year to keep.
What temperature and humidity does a mexican beaded lizard need?
Temperature: Basking 32–35°C, cool 22°C. Humidity: 40–60%.
What does a mexican beaded lizard eat?
Carnivore – mice, rats, eggs. Adults every 2–3 weeks, juveniles weekly.
Similar species
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.