Feeding Silkworms For Leopard Geckos: A Complete Guide

Silkworms for leopard geckos stand out as a luxurious treat in the world of reptile nutrition, offering a delectable and beneficial option for these voracious insectivores. Known for their rich nutritional profile, silkworms are a soft-bodied delicacy that can contribute to the overall health and vitality of your leopard gecko companions.

In this article, we’ll explore the wonders of silkworms and discover how incorporating them into your gecko’s diet can be a delightful way to enhance their well-being.

Silkworms for leopard geckos: Is it safe or not?

Silkworms For Leopard Geckos

Silkworms are generally considered safe and nutritious for leopard geckos when included as part of a well-balanced diet. Leopard geckos are insectivores, and their diet primarily consists of various invertebrates. Silkworms offer a soft-bodied, high-protein option that can be a valuable supplement to the gecko’s diet.

Here are some considerations to ensure the safety and optimal use of silkworms for leopard geckos:

  1. Nutritional Benefits: Silkworms are rich in protein, essential amino acids, and other nutrients, making them a nutritious choice for leopard geckos.
  2. Size Appropriateness: Choose silkworms of an appropriate size for your leopard gecko. The size of the prey should be proportional to the size of the gecko, avoiding any potential choking hazards.
  3. Variety in Diet: While silkworms can be a healthy addition to the diet, it’s essential to provide a variety of feeder insects to ensure a well-rounded and balanced nutritional intake.
  4. Gut Loading: Consider gut loading or feeding the silkworms nutritious foods before offering them to your gecko. This enhances the nutritional value of the silkworms and, in turn, benefits your gecko.
  5. Moderation: As with any feeder insect, moderation is key. While silkworms are a great source of nutrition, they should be part of a diverse diet that includes other insects like crickets, mealworms, and roaches.
  6. Observation: Monitor your gecko’s behavior and health after introducing silkworms. If you notice any adverse reactions or changes in behavior, consult with a veterinarian experienced in reptile care.

Remember that individual geckos may have different preferences, so it’s a good idea to observe your gecko’s reactions to various feeder insects and adjust the diet accordingly. Always strive for variety and balance in your leopard gecko’s diet to ensure their well-being and longevity.

What’s the nutritional value of silkworms for leopard geckos?

Silkworms are highly valued for their nutritional content, making them a nutritious option for leopard geckos.

Here’s a breakdown of the nutritional value of silkworms:

  1. Protein: Silkworms are an excellent source of protein, a crucial component for the growth, development, and maintenance of tissues in leopard geckos.
  2. Amino Acids: They provide essential amino acids, which are the building blocks of proteins. Amino acids are vital for various physiological functions, including the synthesis of enzymes and hormones.
  3. Moisture: Silkworms have a higher moisture content compared to some other feeder insects, contributing to hydration in leopard geckos. This can be beneficial, especially in arid environments where maintaining hydration is essential.
  4. Fat: Silkworms contain moderate levels of fat. While some fat is necessary for energy, it’s essential to provide a balanced diet to prevent excessive fat intake.
  5. Calcium: Silkworms have a favorable calcium-to-phosphorus ratio, which is crucial for maintaining healthy bone structure in leopard geckos. However, it’s still important to ensure that the overall diet meets the gecko’s calcium requirements.
  6. Vitamins: Silkworms contain essential vitamins, including B-vitamins and vitamin E, which contribute to overall health.

Always keep in mind that the nutritional content of silkworms can be influenced by their diet. “Gut loading” involves feeding the silkworms nutrient-rich foods before offering them to your leopard gecko. This practice enhances the nutritional value of the silkworms and, consequently, benefits the gecko.

While silkworms offer a range of nutrients, it’s essential to provide a varied diet for leopard geckos. Combining silkworms with other feeder insects, such as crickets, mealworms, and roaches, ensures a more comprehensive and balanced nutritional profile for your leopard gecko.

As with any dietary changes, it’s advisable to monitor your gecko’s health and consult with a reptile veterinarian if you have specific concerns or questions.

How often should I feed silkworms to my gecko?

The frequency of feeding silkworms to your leopard gecko depends on various factors, including the gecko’s age, size, and overall health. Generally, leopard geckos are fed every 2-3 days, but individual variations may occur.

Here are some guidelines to help you determine how often to feed silkworms to your gecko:

  1. Age and Size: Younger, growing geckos typically require more frequent feedings. Baby and juvenile leopard geckos may be fed daily or every other day, while adult geckos can be fed every 2-3 days. Adjust the frequency based on the gecko’s size and growth rate.
  2. Health and Activity Level: Pay attention to your gecko’s health and activity level. If your gecko appears to be maintaining a healthy weight and is active, the feeding schedule is likely appropriate. If you notice weight loss or reduced activity, you may need to adjust the feeding frequency or consult with a veterinarian.
  3. Variety in Diet: While silkworms offer excellent nutritional value, it’s essential to provide a diverse diet. Incorporate other feeder insects, such as crickets, mealworms, and roaches, to ensure a balanced nutritional intake.
  4. Seasonal Changes: Some geckos may experience changes in appetite and activity levels based on seasonal variations. Be observant and adjust the feeding schedule accordingly.
  5. Growth Phases: During periods of rapid growth, such as shedding or reproductive phases, your gecko may have an increased appetite. Adjust the feeding frequency to accommodate these phases.

Remember to dust the silkworms with a calcium supplement before feeding them to your leopard gecko. Calcium is essential for maintaining healthy bones and preventing metabolic bone diseases.

It’s crucial to observe your individual gecko’s behavior, weight, and overall health to tailor the feeding schedule to its specific needs. If you have concerns about your gecko’s diet or health, it’s always a good idea to consult with a veterinarian specializing in reptile care for personalized advice.

How to boost silkworms’ nutrients for geckos?

Silkworms are a nutritious feeder insect for geckos, and you can enhance their nutritional value by providing them with a well-balanced diet. Silkworms naturally contain a good amount of protein, but you can further boost their nutritional content by feeding them a nutrient-rich diet before offering them to your geckos.

Here’s how you can do it:

  • Feed Silkworms a Nutrient-Rich Diet:
    • Provide silkworms with a nutritious diet to enhance their nutritional value. Silkworms are typically fed mulberry leaves, but you can also offer them other nutrient-rich foods. Some options include high-calcium greens like collard greens, mustard greens, and dandelion greens.
    • Commercial silkworm chow or food designed for feeder insects can also be used to improve their nutritional profile.
  • Gut Loading:
    • Gut loading is the process of feeding feeder insects nutrient-rich foods before offering them to your reptile. This allows the insects to absorb and store essential nutrients that will be passed on to your gecko when they are consumed.
    • Common gut-loading foods include fresh fruits and vegetables, high-calcium greens, and commercial gut-loading diets.
  • Supplementation:
    • Even with a nutrient-rich diet, it’s a good idea to dust or gut-load silkworms with a calcium supplement before feeding them to your geckos. This ensures that your reptiles receive adequate calcium, which is crucial for their bone health.
    • Vitamin supplements may also be necessary, depending on your gecko species and its specific dietary requirements. Consult with a veterinarian to determine the appropriate supplementation for your gecko.
  • Maintain Hygiene:
    • Ensure that the environment in which you’re raising the silkworms is clean and hygienic. Proper hygiene helps prevent the growth of harmful bacteria that could negatively impact the nutritional value of the insects.
  • Variety in Diet:
    • While silkworms can be a nutritious staple, it’s essential to provide variety in your gecko’s diet. Consider offering other feeder insects like crickets, roaches, and mealworms, as well as a mix of fruits and vegetables.

Always consult with a reptile veterinarian for specific dietary recommendations based on your gecko’s species, age, and health condition. Additionally, observe your gecko’s behavior and adjust its diet as needed to ensure it stays healthy and active.

Risks in feeding silkworms to geckos

Silkworms For Leopard Geckos

While silkworms are generally considered a nutritious and safe feeder insect for geckos, there are a few potential risks associated with their consumption.

It’s essential to be aware of these risks to ensure the health and well-being of your gecko:

  • Choking Hazard:
    • Silkworms can be relatively large compared to other feeder insects, and there is a risk of choking, especially for smaller gecko species or juveniles. Be mindful of the size of the silkworms in relation to your gecko’s size.
  • Excessive Moisture Content:
    • Silkworms have a high moisture content, and feeding too many of them to your gecko could contribute to increased humidity levels in their enclosure. High humidity can lead to respiratory issues and other health problems, especially for species that prefer drier conditions.
  • Limited Availability of Other Nutrients:
    • While silkworms are rich in protein, they may not provide a complete and balanced diet on their own. It’s crucial to offer a variety of feeder insects and supplement their diet with other nutritious foods to ensure your gecko receives all the essential nutrients it needs.
  • Variety in Diet:
    • Relying solely on silkworms as the primary feeder insect may lead to a lack of dietary variety. A diverse diet is essential for providing a wide range of nutrients and preventing nutritional deficiencies.
  • Potential for Pesticide Residues:
    • If you are sourcing silkworms from outside your home, there’s a risk of pesticide residues from the leaves they consume. Be sure to obtain silkworms from reputable sources that prioritize the health and safety of the insects.
  • Allergic Reactions:
    • Some geckos may be allergic to specific insects, including silkworms. Monitor your gecko closely after introducing any new food items and be alert to signs of allergic reactions, such as swelling, redness, or changes in behavior.

To mitigate these risks, it’s essential to maintain a balanced and varied diet for your gecko. Rotate different feeder insects and supplement their diet with appropriate vitamins and minerals.

Always consult with a reptile veterinarian for guidance on your specific gecko’s dietary needs and to address any concerns or health issues. Regular observation and adjustments to the diet based on your gecko’s health and behavior are key to ensuring its well-being.

What size silkworms are suitable for different gecko stages?

The size of silkworms suitable for different gecko stages can vary depending on the species of gecko and the individual size of each gecko.

However, here are general guidelines for selecting silkworm sizes based on the life stage of geckos:

  1. Hatchlings and Juveniles:
    • For newly hatched or very young geckos, small-sized silkworms are appropriate. These worms are typically smaller than half an inch (about 0.5 inches or 1.3 cm). This size is suitable for smaller gecko species, such as baby leopard geckos.
  2. Sub-Adults:
    • As geckos grow, you can gradually increase the size of the silkworms you offer. Medium-sized silkworms (around 0.75 to 1 inch or 1.9 to 2.5 cm) are suitable for sub-adult geckos. Again, the appropriate size can vary based on the specific gecko species.
  3. Adults:
    • Adult geckos can generally consume larger silkworms. Large silkworms, which can be over an inch (2.5 cm) or more in length, may be appropriate for larger adult gecko species. Always monitor your gecko during feeding to ensure they can handle the size of the prey.

It’s important to note that individual geckos within a species may vary in size, and preferences can also differ. Observing your gecko’s behavior during feeding can help you determine whether the silkworm size is suitable.

If your gecko is struggling to consume or shows disinterest in the silkworms, you may need to adjust the size of the prey.

Additionally, providing a variety of feeder insects, including crickets, mealworms, and roaches, can contribute to a more balanced and enriching diet for your gecko.

Always consider the specific needs of your gecko species and consult with a veterinarian for tailored advice on feeding and nutrition based on the individual characteristics of your pet.

Can geckos eat silkworm pupae?

Silkworms For Leopard Geckos

While geckos primarily consume live insects, they may not be as interested in feeding on silkworm pupae compared to the larval stage (caterpillar or worm stage). The pupae have undergone metamorphosis and are in a transitional stage, typically encased in a cocoon.

Some geckos may show interest in silkworm pupae, while others may not recognize them as suitable prey. Additionally, the tough outer covering of the pupal stage may be less appealing to some geckos compared to the softer bodies of the larval stage.

If you want to offer silkworm pupae to your geckos, here are a few things to consider:

  1. Try Different Stages: Some geckos may accept silkworm pupae, while others may not show interest. Experiment by offering pupae alongside other live insects to see if your gecko is willing to consume them.
  2. Variety in Diet: While silkworms can be a nutritious addition to a gecko’s diet, it’s essential to provide dietary variety. Offer a mix of feeder insects such as crickets, mealworms, and roaches, along with appropriate fruits and vegetables.
  3. Monitor Behavior: Observe your gecko’s behavior when offering silkworm pupae. If they show no interest or have difficulty consuming them, it’s advisable to focus on other feeder insects that your gecko readily accepts.

Always be cautious about the size of the prey relative to your gecko’s size, and ensure that the insects offered are appropriately sized to avoid any potential choking hazards.

As with any dietary changes, it’s a good idea to consult with a reptile veterinarian who can provide guidance based on the specific needs and preferences of your gecko species.

How do I store silkworms for geckos?

Storing silkworms properly is crucial to ensure their health and nutritional value when fed to geckos. Here are steps you can follow to store silkworms for geckos:

  1. Silkworm Container:
    • Use a dedicated container for silkworm storage. The container should have ventilation holes to allow for proper air circulation.
  2. Bedding:
    • Line the bottom of the container with a suitable bedding material. This could be something like a paper towel, egg carton, or commercial silkworm chow. The bedding provides a surface for the silkworms to move around and helps maintain cleanliness.
  3. Temperature:
    • Keep the silkworms at a temperature between 75°F to 85°F (24°C to 29°C). Silkworms are sensitive to temperature, and maintaining an appropriate environment helps them stay healthy and active.
  4. Humidity:
    • Maintain a moderate level of humidity in the container. Silkworms require a slightly humid environment, but excessive moisture can lead to issues like mold growth. Aim for humidity levels between 60% to 80%.
  5. Feed:
    • Provide fresh food for the silkworms regularly. Mulberry leaves are the traditional food source for silkworms, but you can also use high-calcium greens, commercial silkworm chow, or a mixture of these.
  6. Cleanliness:
    • Keep the container clean by removing any uneaten food, feces, or molting skins. Regular cleaning helps prevent the growth of harmful bacteria and maintains a hygienic environment for the silkworms.
  7. Avoid Overcrowding:
    • Avoid overcrowding the silkworms in the container. Provide enough space for them to move around comfortably. Overcrowding can lead to stress and competition for resources.
  8. Storage Duration:
    • Silkworms are best stored for short durations. If you plan to keep them for an extended period, consider refrigerating them. Place the container in the refrigerator at a temperature between 40°F to 50°F (4°C to 10°C). However, keep in mind that refrigeration may slow down their metabolism, and they may not be as active.

Always consider the specific needs of your gecko species and adjust the size and quantity of silkworms accordingly. Before feeding silkworms to your gecko, gut-load them with nutritious foods to enhance their nutritional content.

If you notice any signs of mold, decay, or unusual odors in the container, take corrective actions promptly to ensure the health of the silkworms and the safety of your gecko.


Silkworms can be a valuable addition to the diet of leopard geckos, offering a nutritious and protein-rich alternative to other feeder insects. Their high calcium content makes them particularly beneficial for supporting the bone health of these reptiles.

When incorporating silkworms into a leopard gecko’s diet, it is essential to consider the size of the silkworms relative to the gecko’s stage of life. Additionally, providing a well-balanced and varied diet, along with proper storage practices, contributes to the overall health and well-being of leopard geckos.

In addition, silkworms for leopard geckos offer a wholesome and enriching dietary option, but it’s crucial to monitor the gecko’s behavior and nutritional needs to ensure a balanced and optimal feeding routine.