Kings' rock monitor (Varanus kingorum)
Photo: Christoph Baumann / CC BY 3.0 · via Wikimedia Commons

Reptile · Monitor

Kings' rock monitor care guide

Varanus kingorum

AdvancedCITES – buy captive-bred

The kings' rock monitor is a advanced-level monitor from Kimberley region, Australia. Adults reach 25–30 cm and live 10–15 years in captivity. Smallest monitor; build rock stacks with tight crevices.

  • Enclosure 90 × 45 × 75 cm
  • Temp Basking 50°C, cool 26°C
  • Humidity 30–50%

How much does a kings' rock monitor cost in Canada?

Animal$2000–4000Typical captive-bred price
Bioactive enclosure$760–1370Enclosure $350–680 · equipment $210–450 · bioactive supplies ≈ $210
Yearly upkeep$400–600Food, supplements, bulbs, power, vet fund
First year total$3160–5970All prices CAD, estimates

Kings' rock monitor quick facts

Skill level
Advanced
Adult size
25–30 cm
Lifespan
10–15 years
Activity
Diurnal
Native range
Kimberley region, Australia
Minimum enclosure
90 × 45 × 75 cm (35 × 18 × 30 in, ≈ 80 US gal)
Housing
Best kept alone.
Temperature
Basking 50°C, cool 26°C
Humidity
30–50%
UVB
Required
Diet
Insectivore – small roaches, crickets
Bioactive style
Semi-arid

Kings' rock monitor enclosure & bioactive setup

Give one adult at least 90 × 45 × 75 cm (35 × 18 × 30 inches). Best kept alone. This species suits a semi-arid bioactive build.

  1. Leaf litter2 cm
  2. Jurassic ABG Semi-Arid Blend12 cm
  3. 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 50°C, cool 26°C. Humidity: 30–50%. UVB: Required.

What does a kings' rock monitor eat?

Insectivore – small roaches, crickets. Juveniles daily, adults 4–5 times a week.

Handling, temperament & health

Shy; display animal.

Health watch: Obesity and dehydration.

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 kings' rock monitor bioactive

Quantities are for one minimum-size enclosure (90 × 45 × 75 cm).

Kings' rock monitor FAQ

Is the kings' rock monitor good for beginners?

The kings' rock monitor is an advanced species – best for experienced keepers. Shy; display animal.

What size enclosure does a kings' rock monitor need?

At least 90 × 45 × 75 cm (about 35 × 18 × 30 inches, roughly 80 US gallons) for one adult. Best kept alone.

How much does a kings' rock monitor cost in Canada?

Typically $2000–4000 CAD to buy, about $760–1370 CAD for a complete bioactive enclosure, and $400–600 CAD a year to keep.

What temperature and humidity does a kings' rock monitor need?

Temperature: Basking 50°C, cool 26°C. Humidity: 30–50%.

What does a kings' rock monitor eat?

Insectivore – small roaches, crickets. Juveniles daily, adults 4–5 times a week.

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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.