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How many crested geckos are in a 20 gallon?

Author

Matthew Cannon

Updated on March 05, 2026

How many crested geckos are in a 20 gallon?

ENCLOSURE SIZE:The enclosure should be a solid glass sided tank long enough to create the two separate temperature gradients (warm and cool); a crested gecko tank should be at least 29-gallon or larger for 3 adults. A 20 gallon HIGH tank will be a large enough enclosure for one adult.

Regarding this, how many crested geckos can live in a 20 gallon tank?

Finally, as adults, one animal per 10 gallons is acceptable. If you are considering a 20 high aquarium (perfect size), with enough hiding spaces, you may keep up to a male and two females.

Secondly, what size tank do I need for 2 crested geckos? One adult can live in a 12" x 12" x 18" enclosure for its entire life. However, if you want to have more than one, Exo Terras 18" x 18" x 24" is the minimum size for a pair or trio of crested geckos. Exo Terras screen enclosures can also be used, but you will spend more time keeping the humidity up in this enclosure.

Thereof, is 20 gallons enough for a crested gecko?

A crested gecko weighing 25 grams or more can live in a 20-gallon long tank, although a larger tank (30-gallon or larger) is better. A long tank will need to be placed vertically to be suitable. So, a 20-gallon tank is a minimum size for an adult crested gecko.

How many crested geckos can live in a 30 gallon tank?

A 30-gallon tank is generally recommended for a pair of crested geckos. However, my recommendation would be to get an even bigger tank. So a big tank (40-gallon or lager) has the added benefit that you can keep more than one crested gecko in it.

Is 12x12x18 big enough for crested gecko?

Baby crested geckos are best housed in large plastic terrariums or in standard 12x12x18 Glass cage with a screen top. An adult crested gecko should be housed in at least a 12x12x18, but a 12x12x24 is recommended. Larger tanks will allow for better displays.

Do crested geckos get lonely?

Crested geckos are solitary animals that are best kept alone. You can usually keep female crested geckos together without any problems. Lastly, a single male and a female crested gecko shouldn't be kept together permanently.

Can Crested Geckos eat bananas?

yes, crested geckos can eat bananas. While being high in potassium bananas inhibit optimal calcium absorption into the system. However, they have numerous other nutrients that are good for your cresty.

What reptile can live in a 20 gallon long tank?

While all turtles and crocodilians grow much too large for 20-gallon habitats, a variety of lizards and snakes thrive in cages of this size. Leopard geckos (Eublepharis macularius), five-lined skinks (Plestiodon fasciatus) and crested geckos (Rhacodactylus ciliatus) are all great choices for such cages.

Do crested geckos need heat lamps?

One of the best things about crested geckos is that they thrive at room temperature. No special lights or heaters are required, but if you are in a chilly area or would like to grow real plants in your enclosures, you need to pay attention to lights, fixtures, bulbs and the heat they generate.

Can crested geckos eat fruit?

Crested geckos can be fed soft fruits that are moderate to high in calcium and low in phosphorus. In captivity, fruits should be considered as treats for your crested gecko in addition to a crested gecko diet. Certain fruits, such as citrus fruits, will even harm your gecko's health.

How long do crested geckos live?

Handling and Lifespan for Crested Geckos
All in all, they are relatively low maintenance pets. The one thing that most crested gecko owners don't realize is that when you take care of these animals they can live 15 to 20 years. An animal that lives 15-20 years will be with you for a lot of changes in your life.

What size tank is good for a crested gecko?

An adult crested gecko should be housed in a 20-gallon tank with screen top. Larger tanks will allow for better displays. In areas with moderate to high relative humidity, crested geckos will fare well in screen cages. These tanks have the advantage of being light and easy to clean.

Can a crested gecko live in a fish tank?

You should get at least a 20-gallon tank for a single adult crested gecko, but a bigger (vertical) tank is always better. Never use a horizontal tank that doesn't have climbing possibilities.

Minimum Tank Size.

Crested gecko sizeMinimum tank size
10 to 25 grams7 to 10 gallons
25 grams and larger20 gallons

How big is a 25 gallon fish tank?

Mid-Sized Aquariums
Medium Aquariums
Tank SizeL x W x HEmpty Weight
20-gallon (high)24" x 12" x 16"25 lbs.
20-gallon (long)30" x 12" x 12"25 lbs.
25-gallon24" x 12" x 20"32 lbs.

What is the best tank for a crested gecko?

Best Cage for a Crested Gecko
  • Exo Terra Rainforest Habitat Kit.
  • Zilla Vertical Tropical Kit.
  • Exo Terra Allglass 36†Terrarium.
  • REPTIZOO Reptile Glass Terrarium.
  • Zoo Med ReptiBreeze Open Air Screen Cage.

Will two female crested geckos fight?

Even female crested geckos will fight amongst each other if they don't have enough space. You'll want a 20-gallon aquarium as a minimum for a single crested gecko. Two geckos will need a 30-gallon terrarium, and more geckos will need even more space.

Do crested geckos like to be held?

Crested geckos do enjoy being held, and this is a great way to build trust between you and your new pet. While your gecko will be happy while being held by you, handling your gecko correctly is key to building companionship between you and your reptile friend.

How old is a 3 inch crested gecko?

Crested Gecko Size and Growth Chart
AgeWeightBody Length with Tail
Hatchling1.5-2 grams2.5-3 inches
Baby (2 months)3 grams3-4 inches
Juvenile (3 months)4 grams3-5 inches
Juvenile (4 months)5 grams4-6 inches

How much room do crested geckos need?

Crested geckos need a tall vivarium. An adult requires a 45cm wide by 60 cm tall and 45cm deep enclosure at minimum. Hatchling geckos are more secretive, so you may need to start with a smaller vivarium and increase the size as the gecko grows.

Do crested geckos need a hide?

Crested Geckos do not need a specific hiding place per se but they do need decor items that they can climb such as bendable vines, cork bark, driftwood or bamboo tubes.

How big does an adult crested gecko tank need to be?

An adult crested gecko should be housed in a 20-gallon tank with screen top. Larger tanks will allow for better displays. In areas with moderate to high relative humidity, crested geckos will fare well in screen cages.

Do crested geckos bite?

Crested Geckos can bite and do bite if they feel threatened in any way. Generally, Crested Geckos are well-behaved reptiles and are ideal as pets. It is unknown to many that Crested Geckos even bite because they are very much docile and calm species.

How many crested geckos can a 55 gallon tank hold?

A 55 gallon tank is a very nice size for a pair and could easily handle a 1.2 group.

Do crested geckos smell?

Crested geckos do not smell. Instead, it is poorly maintained tanks that are the reasoning behind this stinky smell. Failure to clean out fecal matter, uneaten food and other matter found within the tank can lead to a bad stench.

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