Skip to Content

How To Feed Hornworms To Leopard Geckos?

how to feed hornworms to leopard geckos

Feeding Leopard Geckos is typically effortless. It is enough to offer the necessary amount of insects in a limited period and let them go hunting. Adding caterpillars is an excellent way to provide required calcium to lizards’ daily diet, but many owners are unsure how to feed hornworms to Leopard Geckos.

The best option is to offer one to four hornworms to your Leopard Gecko, depending on its age, but no more than three to four times a month. The problem is that lizards consider these caterpillars as treats, can become addicted, and sometimes start refusing other food rich in necessary proteins.

If you want to know how often you can feed your leopard gecko hornworms, how to incorporate them into your feeding schedule, and how to prepare these worms for your leo, keep reading!

How Many Hornworms to Feed My Leopard Gecko?

The rule of thumb is to avoid overfeeding your Leopard Gecko and prevent regurgitating and gaining weight. Therefore, the amount of food offered, including hornworms, should be precisely determined, depending on your pet’s age.

DayMeal example for an adult
MondayLarge crickets (4 to 5) + mealworms (1 to 2)
WednesdayDubia roaches (5 to 6 medium or 7 to 8 small)
FridayLarge crickets (3 to 4) + mealworms (2) + hornworm (1)
Feeding schedule for adult leopard geckos (with hornworms)

Adults can enjoy in one big, two to three medium-sized, or three to four small hornworms once a week.

Never offer your juvenile Geckos a big hornworm to prevent choking (more on that here). However, you can feed it with one medium-sized or one to three small hornworms two times a week.

Finally, a baby Leopard Geckos shouldn’t eat more than a small hornworm a week.

DayMeal example for a baby leopard geckoNumber
MondaySmall crickets5 to 7
TuesdaySmall dubia roaches6 to 8
WednesdaySmall crickets + Small roaches3 to 4 each
ThursdaySmall crickets5 to 7
FridaySmall roaches6 to 8
SaturdaySmall crickets + roaches3 to 4 each
Sunday foodSmall crickets3 to 4
Sunday treatSmall hornworm or waxworm1
Feeding schedule for juvenile leopard geckos (with hornworms)

Be aware that each Leopard Gecko has a different taste and preferences. So, you can expect that these recommended guidelines won’t fit every lizard equally.

Most Geckos adore hornworms and can eat all of them, no matter how much you offer them. On the other hand, some picky eaters won’t even touch these caterpillars even as an occasional treat.

If your Gecko refuses to eat this food type, you shouldn’t force it. Simply pick out other worms and insects that will fit it better.

How Often Can Leopard Geckos Eat Hornworms?

The problem with hornworms is that they are too delicious for Leopard Geckos. Offering this treat to your pet too often can make it addicted over time.

This hornworm is a bit too long for this leopard gecko.

In extreme cases, the lizard can refuse to eat anything else if you stop providing these caterpillars, causing severe health issues.

The only option you have in that case is to stop feeding your pet for a while until it starts eating a nutritionally complete diet.

Your goal is to prevent unhealthy feeding habits and addiction and offer hornworms only once a week. Some owners even recommend giving this food only once in two weeks.

There is one more thing. Hornworms are pricey, and you should be careful with offering them to your pet when you have a limited budget.

Ways to Feed Hornworms to Your Leopard Gecko

Hornworms are practical to feed Leopard Geckos since they move slowly, making it comfortable and effortless for your lizard to catch them. Plus, they are moist, which makes swallowing easy.

However, these caterpillars are not ideally balanced food, so you should make a trick to transform them into a value meal.

Gut loading

Hornworms are yummy and easily digestible bites for your Gecko, but they lack some nutrients, particularly proteins. Therefore, you need to gut-load them before offering them as a meal.

Gut loading is a way to raise your Leopard Gecko’s prey quality by feeding it with nutritious foods. The goal is to pass those nutrients to your lizard indirectly. In this case, you should use this method to enrich hornworms with missing proteins.

The ideal period for gut-loading hornworms is 12 to 48 hours before putting them on the menu. Unfortunately, these creatures are suckers for sweets, so gut-loading them is not an acceptable option in the long run.

In most cases, live hornworms bought in a cup habitat in a pet shop come with enough quality ingredients. On the other hand, it is perhaps better to look for food alternatives for your pet and feed it with high-protein insects.

how many hornworms to feed a leopard gecko?
“Did you say “Hornworm”?


Your Leopard Gecko feeds uniformly, so you should add necessary supplements to its meal to keep it healthy and prosperous.

First of all, you need to provide calcium for your pet, but be careful. According to exotics veterinarian Dr. Julia Whittington, lizards can’t efficiently absorb calcium from food without vitamin D3.

If your diurnal lizard has no access to UVB radiation, you should provide D3 supplements for it to prevent vitamin D deficiency. In this case, ensure that powder contains not more than 50,000 IU/kg of this vitamin.

Another thing is the Ca:P ratio that should be 2:1 in ideal conditions, but no more than 2.5:1. Too high phosphorous levels mean binding this mineral with calcium and preventing its proper absorption.

You should follow the required schedule of supplement adding, depending on your Gecko’s age. Add a multivitamin to your baby lizard once a week and calcium three times a week.

Juveniles will need both calcium and multivitamin weekly. On the other hand, adults require calcium once a week and multivitamins monthly.


Since Leopard Gecko’s diet is a bit restricted, they may suffer from vitamin and mineral deficiency. The best option to make it up is dusting hornworms with supplement powder.

That way, your pet will intake necessary ingredients with an offered live meal.

Dusting hornworms is an uncomplicated task. You will need supplement powder containing multivitamins. Add hornworms enough for one meal and a pinch of powder to a Ziploc bag and shake it gently before serving.

Since hornworms are packed with calcium*, there is typically no need to dust them with this supplement.


Feeding Leopard Geckos is entertaining and effortless, so it will be enough to determine the food type and recommended amount.

Provide one to four hornworms a week, depending on your pet’s age. A balanced diet will keep it healthy and prevent gaining weight and possible addiction.

Pierre And The ReptileCraze Team
Latest posts by Pierre And The ReptileCraze Team (see all)