Written by Madeline Smith, Reptile Care Writer at Zen Habitats

Published: August 24, 2026 · Last Reviewed: August 31, 2026

Insects Aren't The Whole Diet 

Unlike insectivorous reptiles, crested geckos don't need live insects to survive. In fact, a high-quality powdered crested gecko diet (CGD) mixed with water should be the staple diet and can serve as a complete, balanced meal on its own. Many keepers offer insects occasionally (once or twice per week) as enrichment and  So the very first question to ask is: is your gecko actually skipping meals, or is it simply choosing its prepared diet over bugs? If it's eating its CGD well, a lack of interest in insects usually isn't a red flag at all.

Common Reasons Crested Geckos Refuse Insects

Stress From a New Environment or Handling

New enclosures, recent rehoming, or too much handling can all make a crested gecko feel uneasy. A stressed gecko will often hide more and eat less, insects included. Giving a new gecko a quiet adjustment period, with minimal handling for the first week or two, often resolves this on its own.

Shedding

Crested geckos often refuse food for a day or two before shedding and a day or two after shedding. Since crested geckos eat their shed skin, their stomach's become full of their shed skin which often reduces their appetite for food. 

Temperature and Humidity Imbalances

Cresties are sensitive to their environment. If the enclosure is running too warm, too cold, or the humidity is off, your gecko may become sluggish and disinterested in eating. Double check that nighttime and daytime temperatures fall within the recommended range, and that humidity cycles between an appropriate low and high each day.

Age: Both Young AND Old

Young crested geckos can take awhile to show interest in hunting bugs, however, introducing bugs from a young age is one of the most beneficial times to get a gecko started eating insects! Baby crested geckos will start showing interest in hunting small insects like pinhead - 1/4" crickets at only a few weeks old. They can be quite clumsy hunters at first, but once they get the hang of it, they will benefit greatly from insects being added to their diet! Young geckos eating live bugs will often have much more balanced growth rates and be less lanky than crested geckos raised on crested gecko diet alone. 

On the flip side, sometimes you'll find that adult crested geckos who previously LOVED insects as a young animal are no longer hunting the bugs you put into their enclosure. As a breeder of crested geckos myself, I find that adults seem to get bored of regular insect feeding after they hit maturity. Many of the animals that slow way down on insects may not eat crickets if offered every week, but will still eat one here and there if offered less often. The good news is, they reaped the benefits of eating live insects during vital growth stages, and as healthy established adults, they don't need as much protein as they used to when their bodies were putting lots of energy into growing. 

Seasonal Appetite Changes

Many crested geckos naturally eat less during cooler months, even indoors, following subtle seasonal cues like shifts in daylight. This mild slowdown is normal and not usually a cause for concern as long as your gecko maintains a healthy weight and tail.

The Insects Themselves

Sometimes the problem isn't the gecko, it's the choice of insects. 

Crested geckos often prefer insects that move a lot and trigger their instinct to hunt, making crickets the perfect first insect to introduce your gecko to bugs. Small sized crickets released in the enclosure are the best way to get your gecko interested in chasing bugs. If you are finding that your gecko isn't interested in Dubia roaches or mealworms, it might be because they aren't moving around enough to pique their hunting instinct. 

If your gecko isn't interested in hunting yet, you can rip off the bug's head with tongs and allow them to lick some of the bug juices. This will get most geckos interested in eating crickets, and eventually they will be snatching bugs off of tongs with enthusiasm! 

What Happens If My Crested Gecko NEVER Likes Bugs?

If you have tried and tried again to get your crested gecko to eat insects to no avail, don't beat yourself up!

Crested geckos can survive just fine without eating live insects.

For geckos that are particularly uninterested in insects, it is best to feed a crested gecko diet that includes insect protein so they are still benefitting from insects in their diet. 

When to Reach Out to a Vet

Consider taking your gecko to the vet if they refuse all food for more than a week if they are typically a good eater, lose more than 10% of their body weight during that time, become unusually lethargic, have sunken in eyes, or show any signs of illness such as sneezing or labored breathing. Trust your instincts. You know your gecko's normal habits better than anyone, and catching a problem early always makes treatment easier!

The Bottom Line

A crested gecko refusing insects isn't a huge cause for concern if they are eating their balanced crested gecko diet. It can take youngsters a few months to become interested in hunting crickets, and older geckos can become bored of insects and go for them less often or not at all. Rarely, a gecko simply doesn't enjoy insects despite repeated attempts to get them interested in bugs, and this is completely fine as long as they regularly eat a balanced crested gecko diet.