If you’re planning a new setup for your reptile, amphibian or invertebrate, you’ve probably seen the words vivarium, terrarium and paludarium used online. They often seem interchangeable, which can make things confusing — and we’re asked about the difference in store all the time.

The truth is that all three terms are flexible, and their meanings have evolved over the years. Once you understand the basics, choosing the right enclosure becomes much easier.

What Is a Vivarium?

In the UK reptile world, a vivarium usually means a wooden reptile enclosure with sliding glass doors and built‑in heating and lighting.

Why are wooden vivariums popular?

• Wood is an excellent insulator, making warm temperatures easy to maintain
• They are durable, long‑lasting and easy to attach equipment to
• They come in large sizes, ideal for adult reptiles
• They can be built long (for ground‑dwelling species) or tall (for arboreal species)

Best suited for:

• Bearded dragons
• Uromastyx
• Leopard geckos
• Corn snakes, king snakes, rat snakes
• Royal pythons

Vivariums are ideal for desert and arid species that need strong heat retention. Wooden vivariums can also be used for forest species, but the wood must be properly sealed to handle humidity and prevent damage to the vivararium.

What Is a Terrarium?

A terrarium originally meant a glass container for growing plants — a miniature ecosystem. Many people use terrariums purely for plants, creating beautiful tropical or desert displays.

In reptile keeping, terrariums now refer to glass enclosures designed for reptiles, amphibians and invertebrates. They are usually:

• Glass on all sides
• Front‑opening
• Well‑ventilated
• Designed to hold humidity
• Perfect for bioactive setups

Best suited for:

• Crested and gargoyle geckos
• Anoles
• Tarantulas
• Tree‑dwelling species
• Semi‑aquatic reptiles and amphibians
• Small to medium geckos and skinks
• Bioactive environments with live plants

Terrariums are ideal for humid or forest species, or animals that prefer moderate ambient temperatures with a basking spot.

What Is a Paludarium?

A paludarium is a hybrid enclosure that combines land and water in one environment. Think of it as part terrarium, part aquarium — perfect for species that live in or around water.

Paludariums usually include:

• A water section (from shallow pools to deeper aquatic zones)
• A land area with plants, branches and hides
• High humidity
• Excellent ventilation
• A naturalistic, rainforest‑style layout

They are fantastic for creating lush, living environments and are very popular with keepers who enjoy bioactive setups.

Best suited for:

• Semi‑aquatic reptiles (e.g., water dragons, some skinks)
• Amphibians (tree frogs, dart frogs, newts, salamanders)
• Aquatic or semi‑aquatic invertebrates
• Tropical plants
• Keepers who want a naturalistic, planted display

Paludariums allow you to recreate riverbanks, rainforest edges, mangrove roots or swamp‑style habitats — perfect for species that split their time between land and water.

Vivarium vs Terrarium vs Paludarium: Which Should You Choose?

Before choosing an enclosure, consider:

• The species you’re keeping
• Its adult size
• Temperature and humidity needs
• Whether you want a bioactive or planted setup
• How the enclosure fits into your home

General guide

• Vivarium → best for desert/arid reptiles needing strong heat
• Terrarium → best for forest/tropical species needing humidity
• Paludarium → best for semi‑aquatic species or planted display environments

Size considerations

Glass terrariums and paludariums rarely come in very large sizes. For big reptiles like bearded dragons, a wooden vivarium is usually the only practical option.

Smaller reptiles, amphibians and invertebrates thrive in terrariums and paludariums when set up correctly.

Bioactive Setups

If you want a bioactive enclosure, glass terrariums and paludariums are usually the easiest choice. Regular watering won’t damage the enclosure, and the ventilation and humidity control are ideal for keeping plants alive.

We stock a range of glass terrariums and paludariums that can be customised with heating, lighting and planting options to create the perfect naturalistic home.

Need Help Choosing?

Do you need advice on the best enclosure for your reptile, amphibian or invertebrate? Our team in Oxfordshire is always happy to help. Explore our care hub and blog, where we cover a wide range of reptile‑keeping topics.

We look forward to helping you create the perfect home for your pet.

Vivarium vs Terrarium vs Paludarium: Comparison Chart

Feature / Purpose	Vivarium (Wooden)	Terrarium (Glass)	Paludarium (Land + Water)
Primary Use	Reptile enclosure for desert/arid species	Reptile/amphibian enclosure for forest/tropical species	Semi‑aquatic enclosure combining land and water
Material	Wood with glass front	Full glass, front‑opening	Glass or acrylic with divided land/water zones
Heat Retention	Excellent (wood insulates well)	Moderate (glass loses heat faster)	Moderate; depends on design
Humidity Control	Low unless sealed	High; ideal for humid species	Very high; designed for moisture‑loving species
Best For	Bearded dragons, uromastyx, leopard geckos, corn snakes	Crested geckos, gargoyle geckos, anoles, chameleons, small skinks	Tree frogs, dart frogs, newts, salamanders, water dragons, semi‑aquatic inverts
Bioactive Suitability	Possible but harder; wood must be sealed	Excellent; perfect for planted setups	Excellent; ideal for lush planted environments with water features
Plant‑Only Use	Rare	Common (classic plant terrarium)	Possible but usually used for mixed environments
Size Availability	Very large sizes available	Limited large sizes	Medium sizes; fewer large options
Ventilation	Good (vents + sliding doors)	Very good (mesh tops + vents)	Very good; designed for airflow and humidity balance
Aesthetic	Traditional reptile look	Naturalistic, display‑friendly	Highly naturalistic, rainforest/riverbank style

FAQs: Vivariums, Terrariums & Paludariums

1. What’s the main difference between a vivarium and a terrarium?

A vivarium is usually a wooden enclosure designed for reptiles that need strong heat retention, particularly desert and arid‑living species. By contrast, a terrarium is a glass enclosure that suits humid, forest‑dwelling reptiles, amphibians and invertebrates — and it can also be used purely for plants to create a miniature ecosystem.

2. What is a paludarium?

A paludarium, on the other hand, is a hybrid enclosure that combines both land and water. This makes it ideal for semi‑aquatic species such as tree frogs, newts, salamanders and water dragons. Additionally, paludariums are perfect for lush, planted bioactive environments where both terrestrial and aquatic plants can thrive.

3. Can terrariums be used just for plants?

Yes — terrariums have a long history as plant‑only displays. They’re perfect for creating miniature ecosystems with mosses, ferns, orchids or desert succulents.

4. Which enclosure is best for bioactive setups?

Glass terrariums and paludariums are the easiest for bioactive builds because watering won’t damage the enclosure and humidity is easier to maintain. Wooden vivariums can be used, but they must be fully sealed.

5. How do I choose the right enclosure for my pet?

Think about your animal’s adult size, temperature needs, humidity requirements, and whether you want a planted or bioactive setup.

• Desert species → vivarium
• Forest/tropical species → terrarium
• Semi‑aquatic species → paludarium

If you’re unsure, our team can help you choose the perfect setup.

Contact or visit Evolution Reptiles

Last updated 23/09/26