Crested geckos are fascinating creatures known for their unique appearance and docile nature. If you’re a reptile enthusiast or considering breeding crested geckos, understanding their reproduction and breeding process is crucial. In this comprehensive guide, we’ll delve into the basics of crested gecko reproduction, signs of egg laying, creating an ideal nesting environment, and caring for hatchlings. Let’s embark on this exciting journey into the world of crested geckos!

Crested Gecko Reproduction and Breeding Basics


Crested geckos reach sexual maturity between 8 and 15 months of age, depending on their growth rate and overall health. Before diving into the breeding process, it’s essential to ensure that your geckos are in prime condition and have attained the appropriate age for breeding.

Sexual Maturity and Breeding:

To determine the sexual maturity of your crested geckos, observe their physical characteristics such as weight, size, and the presence of pores on their hind legs. Males typically develop prominent hemipenal bulges, while females may exhibit a plumper body shape.

Mating Behavior and Successful Breeding:

Introducing a male and female crested gecko requires careful planning and observation. Monitor their behavior closely, as males may display territorial aggression during the courtship process. Once a successful introduction has taken place, breeding can occur, leading to the potential fertilization of eggs.

Ovulation and Egg Fertilization:

Crested geckos exhibit internal fertilization, meaning the female stores the male’s sperm until ovulation. Recognizing the signs of ovulation, such as changes in the female’s behavior and appearance, will aid in determining the most suitable time for successful breeding and egg production.

Signs of Crested Gecko Egg Laying


After the breeding process, female crested geckos will undergo egg development, which ultimately leads to egg laying. Identifying the signs of impending egg-laying is vital for providing appropriate care and creating a conducive environment for a successful outcome.

Changes in Behavior and Appetite:

As the female prepares to lay her eggs, you may notice alterations in her behavior, such as increased activity or restlessness. Additionally, a decrease in appetite is common during this period.

Visible Bulge in the Belly:

A clear indication that your female crested gecko is gravid (carrying eggs) is the presence of a bulge in her belly. This bulge gradually becomes more apparent as the eggs develop within her reproductive tract.

Digging Behavior and Nesting Plans:

Crested geckos possess an innate instinct to create suitable nesting sites for their eggs. Observe your female carefully as she may exhibit digging behavior, searching for a secure location to lay her eggs. Providing appropriate nesting materials and structures is crucial during this stage.

Creating the Ideal Nesting Environment

To ensure the successful development and hatching of crested gecko eggs, it’s essential to create an ideal nesting environment. This involves maintaining appropriate heat and humidity levels, ensuring proper nutrition, and implementing effective egg incubation techniques.

Providing Adequate Heat and Humidity:

Maintaining a stable temperature between 72°F and 78°F (22°C to 26°C) within the enclosure is crucial for the incubation of crested gecko eggs. Additionally, humidity levels ranging from 70% to 80% should be sustained to prevent dehydration and maintain the viability of the eggs.

Ensuring Proper Nutrition:

Proper nutrition plays a significant role in the reproductive health of crested geckos. Providing a well-balanced diet that includes calcium and vitamin supplementation is essential for the overall well-being of your breeding geckos. Offer a variety of gut-loaded insects, such as crickets and roaches, along with a selection of fruit purees, powdered diets, and occasional treats like waxworms. Consult with a reptile veterinarian or experienced breeder to ensure you are meeting the nutritional needs of your geckos during the breeding process.

Monitoring and Adjusting Temperature and Humidity Levels:

Consistent monitoring of temperature and humidity levels is crucial throughout the incubation period. Use a reliable thermometer and hygrometer to maintain the desired range, making adjustments as necessary. Proper ventilation and the use of heat mats or ceramic heat emitters can help regulate the temperature while misting the enclosure regularly will maintain the required humidity levels.

Egg Incubation:

When your female crested gecko has laid her eggs, it’s important to transfer them to a separate incubation container. Use a suitable incubation medium, such as vermiculite or perlite, mixed with water to achieve the ideal moisture content. Place the eggs carefully within the substrate, ensuring they are not touching each other.

Maintain the incubation container at a stable temperature between 72°F and 78°F (22°C to 26°C) and humidity levels around 80%. Regularly check the moisture level of the substrate, adjusting it if necessary to prevent drying out or excessive humidity. The incubation period typically lasts between 60 to 90 days, depending on the specific conditions and genetics of the geckos.

Caring for Hatchlings and Conclusion:

As the incubation period comes to an end, you will start to see the first signs of hatchlings emerging from their eggs. Proper care during this crucial stage will ensure their health and vitality.

Hatchling Enclosure Setup:

Prepare a separate enclosure for the hatchlings, ensuring it meets their specific needs. A smaller enclosure with appropriate hiding spots, climbing branches, and a shallow water dish should be provided. Maintain the temperature and humidity levels within the recommended range for hatchlings.

Feeding Hatchlings:

Hatchlings should be offered a diet consisting of appropriately sized insects and a powdered crested gecko diet. Dust the insects with calcium and vitamin supplements before feeding to ensure their nutritional requirements are met. Monitor their feeding behavior and growth to ensure they are thriving.

Growth and Development:

As the hatchlings grow, provide ample space for them to explore and climb. Gradually increase the enclosure size, and ensure a well-balanced diet to support their rapid growth. Regularly monitor their weight, shedding patterns, and overall health to address any potential issues promptly.


Breeding crested geckos can be a rewarding and educational experience for reptile enthusiasts. By understanding the basics of crested gecko reproduction, recognizing the signs of egg laying, creating an ideal nesting environment, and providing proper care for hatchlings, you can contribute to the successful breeding and development of these unique creatures. 

Remember to consult with experienced breeders, reptile veterinarians, and reliable resources to ensure you provide the best possible care for your crested geckos throughout the breeding process. Enjoy the journey and the wonders of witnessing new life in the world of crested geckos!

Read More:

How Do Crested Geckos Lose Their Tails? – Important Facts To Know!

Do Crested Geckos Need Heat Lamps? – Best Care Guide

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