Argentine Black and White Tegu care hub
AdvancedSalvator merianae

Argentine Black and White Tegu Resource Hub

Complete Argentine black and white tegu care guide covering enclosure setup, omnivore diet rotation, brumation management, and the step-by-step taming process for the lizard world's most dog-like reptile.

Lifespan

12–20 years

Origin

South America — Argentina, Brazil, Uruguay (subtropical grasslands and forest edges)

Habitat & Setup

Tank Size

8×4×2 feet minimum for adults — custom wood or PVC builds are the standard; commercial enclosures rarely reach this size

Substrate

4–6 inches of organic topsoil and coconut coir mix, kept slightly moist; tegus are heavy burrowers

Lighting

T5 HO 10% or 12% UVB spanning most of the enclosure length; replace every 6 months; 12-hour photoperiod

Temperature

Basking

110–120°F surface temperature; hot side ambient 90°F

Cool Side

75–80°F ambient

Night

65–75°F

Humidity: 60–80%

Mist daily or use an automatic mister; tegus need high ambient humidity — dry air causes retained shed and respiratory stress

Diet & Feeding

Diet Type

True omnivore — animal protein, whole prey, eggs, fruit, and vegetables

Schedule

Juveniles daily; sub-adults every other day; adults 3× per week

Supplements

Calcium (without D3 if proper UVB in use) every feeding; multivitamin 2× per month

Foods

Ground turkey (raw, lean)Whole prey — thawed mice, rat pups, day-old chicksRaw eggs with shell (excellent calcium source)Berries (blueberries, raspberries, mango)Squash, sweet potato, leafy greensDubia roaches and superworms (juveniles and sub-adults)Occasional canned dog food (low-sodium, as variety)Snails (with shell for natural calcium)

Temperature Gradient

Night 65–75°FCool Side 75–80°F ambientBasking 110–120°F surface temperature; hot side ambient 90°F

Resource Hub

Everything About Argentine Black and White Tegu

9 guides covering every aspect of argentine black and white tegu care — organized so you can find exactly what you need.

Recommended Gear

Habitat Gear

Large Custom Reptile Enclosure 8×4 Feet
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Adult tegus need a minimum 8×4×2 foot enclosure — standard commercial cages rarely reach this size, making a custom PVC or wood build the standard approach; search for large reptile enclosure panels and DIY kits

Extra Large Reptile Water Bowl for Soaking
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Tegus soak regularly and will fully submerge in their water bowl — a bowl large enough for the tegu to fit inside is not optional. They also frequently defecate in their water, requiring daily changes. A heavy, tip-resistant bowl prevents daily spills that waterlog substrate.

Lighting

Arcadia T5 HO 12% UVB Bulb
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Tegus are diurnal baskers that need strong UVB across most of the enclosure length — a T5 HO 12% bulb provides the Ferguson Zone 3 UVB output appropriate for large active lizards

Heating

Digital Thermostat for Reptiles
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Precise temperature control is critical for tegu health — a reliable digital thermostat prevents overheating at the basking spot and maintains the cool side gradient that allows proper thermoregulation

Halogen Basking Bulb 100–150W for Large Lizards
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Tegus require a basking surface temperature of 110–120°F — a high-wattage halogen flood bulb achieves this more reliably than incandescent or ceramic bulbs while providing the visible light component that supports natural basking behavior. Standard lower-wattage bulbs often cannot reach tegu basking requirements in a large 8×4 enclosure.

Feeding

Reptile Calcium Supplement with D3
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Fast-growing juvenile tegus are at high risk of Metabolic Bone Disease without consistent calcium supplementation at every feeding. Use calcium with D3 only if adequate T5 HO UVB is not provided — with proper UVB, use plain calcium to avoid D3 toxicity from dual supplementation.

Related Species

Frequently Asked Questions

Tegus can be exceptional pets for the right keeper — they are among the most intelligent and personable lizards in the hobby, often described as 'the dog of the lizard world.' They can learn their owner's routines, come when called, and show genuine affection. However, they are absolutely not beginner reptiles. They require a massive 8×4 foot enclosure, advanced diet management, brumation handling, and months of patient taming work. For an experienced reptile keeper willing to put in the time, tegus are incredibly rewarding. For a first reptile, look at bearded dragons or leopard geckos first.

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