How to Tell if Crested Gecko Eggs are Fertile


Breeding Crested Geckos can be real interesting, but spotting fertile eggs is not easy. To tell if eggs are fertilized, look for veiny patterns and white spots which mean an embryo is growing. Unfilled, small eggs often indicate unfertile eggs. Check the eggshell for softness – brittle shells are likely not fertile.

Keep in mind that not all females lay fertile eggs each breeding season, so make sure to find out the timing for your pet.

Fun Fact: Before 1994, Crested Geckos were thought to be extinct. It was Robert Seipp who discovered them in New Caledonia! So, what comes first: the Crested Gecko or the egg? Find out!

What are Crested Gecko eggs?

Crested Gecko eggs are the reproductive structures laid by female geckos. They are small and have a soft, leathery shell. Monitoring temperature and humidity is key for successful hatching. Check for mold and deformation in the shell too – these can indicate the egg is not fertile.

Interestingly, Crested Gecko eggs can stay viable for up to 12 months if kept at a consistent temperature and humidity level. This trait allows breeders flexibility in timing their breeding seasons.

Unlike most other reptile eggs, they don’t have calcification on their shells. This means they are durable enough to protect the embryo, yet soft and pliable.

Caring for and identifying fertile Crested Gecko eggs is essential for successful breeding and conservation programs.

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Factors that determine whether Crested Gecko eggs are fertile

Crested gecko eggs can show different signs of fertility. To figure out if they are viable or not, certain key factors come into play. A table displaying the factors such as size, shape, coloration, and shell texture, plus the presence of veins or a visible embryo, can help to identify fertile crest eggs.

It’s important to remember that some factors rely on the age and health of the breeder geckos. To increase chances of hatching healthy offspring, get reliable breeders with experience. Proper care and attention during breeding can have a big effect on the success rate of a clutch. Plus, research your breeders to make sure you follow protocol specific to the species.

Time to put your egg-pertise to the test! Figure out if your Crested Gecko eggs are ready to hatch or just a yolk.

How to tell if Crested Gecko eggs are fertile?

Checking Crested Gecko Eggs for Fertility

Crested geckos mate and create eggs, but not all of them will hatch. It’s essential to tell the fertile ones from the infertile. Here’s a 5-step guide on how to check crested gecko eggs’ fertility:

  1. Check the incubation period: 30-40 days is usually when they hatch. If no activity or hatching signs, they could be infertile.
  2. Look at the color: Fertile ones are usually white or grayish-white. Infertile tend to be yellowish.
  3. Monitor the shape: Healthy eggs should be oval-shaped and plump. Unhealthy ones may shrivel or have an irregular look.
  4. Examine the texture: Fertile eggs feel firm when gently squeezed. Non-viable ones may be soft or mushy.
  5. Use a flashlight or candling light: Place the egg on a bright light in a dark area. Fertile ones will show veins, while unfertilized won’t.
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Female crested geckos can lay unfertilized eggs (parthenogenesis). Collect all hatchlings on time, as latecomers can sacrifice the others. Handle the fragile eggs with care and don’t shake them. Sterilize your equipment regularly. Don’t incubate infertile eggs, as they can rot and spread diseases. Now – get ready for some baby geckos and hatch a plan for success!

Tips for a successful hatch

Breed crested geckos and experience something exciting! To ensure a successful hatch, follow these 3 guidelines:

  1. Place the fertile eggs in optimal humidity and temperature conditions.
  2. Watch for signs of damage or mold, and remove damaged ones quickly.
  3. Wait patiently during incubation and observe the eggs’ progress.

Remember to check if the eggs have a visible network of veins within 10 days to confirm fertility. Also, fertility rates increase with each breeding attempt.

No guarantees when it comes to breeding crested geckos. In 1972, they were thought to be extinct until they were found on an island near New Caledonia. Now, captive-bred populations exist everywhere.

Though small, crest gecko eggs are super fertile – so make sure your incubation skills are up to par!


Figuring out if crested gecko eggs are fertile isn’t a game of chance. A more certain approach must be used before trying to incubate them.

The color of the eggs can give an indication, but one should be familiar with other methods which can provide a definite answer. These include candling and physical inspection. Both of these can be done by experts or novices.

To figure out if the eggs are fertile, start with either of the methods mentioned. Candling allows you to see inside the egg. Physical inspection involves feeling the egg’s consistency.

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If you want to succeed with your breeding, don’t skip examining the eggs carefully. Begin by finding out which ones are fertile and which aren’t. If you don’t, all your efforts might be wasted!

Frequently Asked Questions

1. How long does it take for crested gecko eggs to hatch?

Typically, crested gecko eggs will take about 60-90 days to hatch. It may vary depending on the temperature and humidity conditions of the incubator.

2. How can I tell if crested gecko eggs are fertile?

You can tell if crested gecko eggs are fertile by looking for veins or blood vessels inside the eggs when you candle them. If you see any, then the eggs are fertile.

3. How often should I candle crested gecko eggs?

You can candle crested gecko eggs once a week to check if there are veins or blood vessels forming inside the eggs, indicating that they are fertile.

4. What should I do if I accidentally drop a crested gecko egg?

If you accidentally drop a crested gecko egg, gently pick it up and examine it to see if there are cracks or damage. If there are, it’s unlikely that the egg will survive. However, if the egg is intact, place it back into the incubator.

5. What temperature and humidity should I maintain in my crested gecko egg incubator?

For crested gecko eggs, it’s best to maintain a temperature of 82-86°F and humidity levels between 70-80%.

6. How often should I mist the incubator holding crested gecko eggs?

You should mist the incubator holding crested gecko eggs once a day to maintain the humidity levels required for the eggs to hatch successfully.