Ornate monitor (Varanus ornatus)

Short answers

Ornate monitor: How big does the enclosure need to be?

Approx. 400×200×200 cm (a large animal, strongly water-oriented).

Ornate monitor: What temperature does it need?

Daytime 28–32 °C, basking spot 45–50 °C, at night 24–26 °C.

Ornate monitor: Does it need UVB lighting?

UVB: UVB needed (Ferguson zone 2–3, UV index 3–5).

Ornate monitor: How long do they live?

Life expectancy: 15–20 years.

Ornate monitor: Is it suitable for beginners?

No – better suited to experienced keepers (difficulty: Expert).

Climate

Daytime temperature

28–32 °C

Night temperature

24–26 °C

Basking spot

45–50 °C

Humidity

70–100 %

UVB

UVB needed (Ferguson zone 2–3, UV index 3–5)

Enclosure

Minimum size

approx. 400×200×200 cm (a large animal, strongly water-oriented)

Substrate

Damp diggable soil or coco, a very large water basin, climbing branches

Feeding

Food

Fish, crabs and crayfish, rodents, chicks, large insects, eggs

Feeding interval

adults 2–3×/week, juveniles daily to every other day

Key facts

Adult size

approx. 1.5–2 m including the tail

Life expectancy

15–20 years

Origin

West and Central Africa (rainforest and wetlands, the Congo basin)

Protection status

CITES Appendix II / EU Annex B – proof of origin required

Brumation

None

Cohabitation

Keep them singly – territorial and aggressive, especially around food; never keep males together

Notes

Taxonomically disputed: molecular work often treats it as a synonym of V. niloticus. More forest-dwelling and aquatic than the classic Nile monitor (a pink tongue, ocellate banding). Very hard to tame. It needs a large swimming area.

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Related species

• Argus monitor (Varanus panoptes) – Expert
• Bengal monitor (Varanus bengalensis) – Expert
• Blue tree monitor (Varanus macraei) – Expert
• Blue-tailed monitor (Varanus doreanus) – Intermediate to expert
• Finsch's monitor (Varanus doreanus finschi) – Expert
• Boatsi tree monitor (Varanus boatsi) – Expert
• Bogert's tree monitor (Varanus bogerti) – Expert
• Lace monitor (Varanus varius) – Expert

All species in the care wiki →

What you need to start

To keep Ornate monitor (Varanus ornatus) you typically need: a suitable enclosure (approx. 400×200×200 cm (a large animal, strongly water-oriented)), substrate (Damp diggable soil or coco, a very large water basin, climbing branches), a heat source with a thermostat, UVB lighting, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.