The Lace Monitor (Varanus varius) is one of Australia's most impressive goannas: large, intelligent, long-lived, and genuinely striking in appearance. Adults commonly reach 1.5 to 2 metres and are powerful, fast animals with strong claws and a confident disposition. This is an advanced species strictly for experienced reptile keepers. A Lace Monitor is a 20-plus year commitment that demands serious space, correct setup, and a keeper who understands large monitor behaviour.
A wildlife keeper's licence is required in Queensland. See our Queensland Reptile Licence Guide.
Enclosure
Lace Monitors cannot be adequately kept in a standard reptile cabinet. Adults require a large, custom-built enclosure or, ideally, a secure outdoor pen with access to natural sunlight. The enclosure should be a minimum of 4 metres long for a single adult, with smooth walls at least 1.8 metres high and a secure roof. Include sturdy climbing logs and horizontal platforms, hollow logs for shelter, a large water container deep enough for soaking, and digging substrate. They are powerful climbers and diggers, so all structures must be robust.
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Heating
- Basking surface temperature: 40 to 50°C
- Warm ambient: 28 to 32°C
- Cool end: 24 to 28°C
Outdoor enclosures in Queensland with natural sunlight are ideal. For indoor setups, use industrial-grade basking lamps over a large flat basking area, all connected to a thermostat. Browse our heating and thermostat range.
UVB Lighting
Strong UVB is essential for any large diurnal monitor kept indoors. Outdoor enclosures with direct natural sunlight address this requirement naturally. For indoor setups, use multiple high-output T5 UVB tubes. Replace every 6 to 12 months. Browse our UVB lighting range.
Feeding
Lace Monitors are opportunistic carnivores in the wild. In captivity, offer whole prey items: appropriately sized rats, day-old chicks, quail, and other whole vertebrate prey. Chopped lean kangaroo or other game meat can be offered occasionally as a supplement. Feed primarily through the warmer months. In cooler periods when the monitor is less active, reduce feeding as digestion slows significantly.
Never feed by hand. Use tongs or place food in the enclosure. Lace Monitors do not always distinguish food from fingers, and a large monitor bite is a serious injury. Browse our frozen feeders.
Handling and Temperament
Many Lace Monitors settle with time and consistent, calm handling, but individuals vary considerably. Animals kept alone tend to become more handleable than those in groups. Combat between adult males can be severe, so house adults individually unless breeding is being specifically managed. Approach and handle experienced animals calmly and with full body support. Inexperienced animals should only be handled by keepers who have the experience to read monitor body language and respond appropriately.
Quick Reference
| Parameter | Target |
|---|---|
| Adult size | 1.5 to 2+ metres |
| Lifespan | 20+ years |
| Minimum indoor enclosure | 4 m long (outdoor enclosure strongly preferred for adults) |
| Basking surface | 40 to 50°C |
| Warm ambient | 28 to 32°C |
| Cool end | 24 to 28°C |
| UVB | High-output T5 or natural sunlight |
| Experience level | Advanced only |
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Speak to our team before purchasing a Lace Monitor if you have any questions about space requirements or enclosure design.
Disclaimer
This guide is provided for general educational purposes only. It is not a substitute for professional veterinary advice. Individual animals vary and outcomes cannot be guaranteed. Always consult a qualified reptile vet for health concerns. A Queensland wildlife keeper's licence is required to purchase and keep Lace Monitors.