Reptile · Venomous snake
Eastern green mamba care guide
Dendroaspis angusticeps
The eastern green mamba is a expert-level venomous snake from Coastal East Africa. Adults reach 150–200 cm and live 15–20 years in captivity. Arboreal; design the enclosure so perches can be serviced from outside.
- Enclosure 120 × 60 × 150 cm
- Temp 26–29°C
- Humidity 60–80%
How much does a eastern green mamba cost in Canada?
Eastern green mamba quick facts
- Skill level
- Expert
- Adult size
- 150–200 cm
- Lifespan
- 15–20 years
- Activity
- Diurnal
- Native range
- Coastal East Africa
- Minimum enclosure
- 120 × 60 × 150 cm (47 × 24 × 59 in, ≈ 285 US gal)
- Housing
- Best kept alone.
- Temperature
- 26–29°C
- Humidity
- 60–80%
- UVB
- Recommended
- Diet
- Carnivore – frozen/thawed mice
- Bioactive style
- Tropical arboreal
Eastern green mamba enclosure & bioactive setup
Give one adult at least 120 × 60 × 150 cm (47 × 24 × 59 inches). Best kept alone. This species suits a tropical arboreal bioactive build.
- Leaf litter2 cm
- Jurassic ABG Terrarium Mix8 cm
- 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: 26–29°C. Humidity: 60–80%. 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 eastern green mamba eat?
Carnivore – frozen/thawed mice. Feed one appropriately sized thawed mouse every 7 days.
Handling, temperament & health
Shy but extremely fast; tools only.
Health watch: Watch for dehydration and stress.
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 eastern green mamba bioactive
Quantities are for one minimum-size enclosure (120 × 60 × 150 cm).
Clay Bio Balls
Drainage layer, 5 cm
Jurassic ABG Terrarium Mix
Bioactive soil layer, 8 cm
Magnolia Leaves 10/Pack
Leaf litter – food and cover for the clean-up crew
Fresh Sphagnum Moss Container
Moss for humidity pockets and planting
Cork Bark Backgrounds
Turns the back wall into climbing space
Cork Bark Tubes
A “tree trunk” to climb and hide in
Yamuna Spiderwood
Arboreal species prefer diagonal and horizontal perches
Cork Branches
More climbing routes
Eastern green mamba FAQ
Is the eastern green mamba good for beginners?
No – the eastern green mamba is a specialist animal for expert keepers only. Shy but extremely fast; tools only.
What size enclosure does a eastern green mamba need?
At least 120 × 60 × 150 cm (about 47 × 24 × 59 inches, roughly 285 US gallons) for one adult. Best kept alone.
How much does a eastern green mamba cost in Canada?
Typically $1000–2500 CAD to buy, about $1860–3200 CAD for a complete bioactive enclosure, and $400–700 CAD a year to keep.
What temperature and humidity does a eastern green mamba need?
Temperature: 26–29°C. Humidity: 60–80%.
What does a eastern green mamba eat?
Carnivore – frozen/thawed mice. Feed one appropriately sized thawed mouse every 7 days.
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.