Short answer
ReptiFiles suggests complete gecko diet daily for juveniles and every two to three days for adults, with insects offered less often. Use a product formulated for crested geckos, mix it according to its label, and remove old food daily. Sources differ on how much to rely on prepared diet, so review the whole feeding plan rather than substituting fruit or adding supplements at random.
A starting schedule by age
| Life stage | Prepared diet | Insects |
|---|---|---|
| Juvenile, up to 12 months | Daily | Once or twice weekly |
| Adult, over 12 months | Every two to three days | Zero to once weekly |
This is ReptiFiles’ published schedule, not a veterinary prescription for every animal.1 It is a starting point to discuss alongside growth, body condition and the directions for the diet you use.
Prepare a meal the gecko can reach
ReptiFiles recommends an elevated feeding ledge for prepared food.1 Make the route to the cup easy to inspect. When you check food, note whether the animal has reached the ledge and whether there are signs of eating.
Mix according to the product label instead of adding ingredients by eye. The RSPCA advises removing prepared food daily because it spoils quickly.3 Keep the cleaning routine separate from the schedule for offering a fresh meal.
Understand the disagreement about prepared diets
Pangea, which manufactures gecko food, says a complete formulated diet can sustain crested geckos and recommends insects for optimal condition.2 The RSPCA recommends dietary variety and advises against using powdered diet exclusively.3 ReptiFiles supports complete prepared diets with supplemental insects.1
Those positions should remain visible when choosing a feeding plan. A source selling food is useful for its product instructions, while its commercial role should also be clear.
Insects and supplements
ReptiFiles lists small crickets and suitable roaches among its feeder choices and recommends calcium dusting.1 Pangea emphasizes gut-loading insects before feeding them.2 Follow a coherent supplement plan for the diet and lighting you use; extra powder is not a substitute for checking the full routine.
When the schedule is not the answer
Keep water available and maintain the misting cycle. If food is repeatedly untouched, work through the not-eating guide instead of simply offering richer treats. Weight loss, poor growth or an unwell animal warrants a reptile veterinarian’s assessment.
Common questions
How often should an adult eat prepared gecko diet?
ReptiFiles suggests every two to three days for adults. Track appetite and body condition, follow the product directions, and ask your reptile veterinarian about an animal with weight or health concerns.
Can fruit or baby food replace a complete gecko diet?
Fruit or baby food does not automatically provide a balanced complete diet. ReptiFiles specifically warns against baby food as a replacement.
Sources
Numbers in the text link to these sources. We checked each one on the date shown.
- 1Crested Gecko FoodReptiFiles (specialist keeper guidance). Checked Oct 30, 2026.
- 2Crested Gecko CarePangea Reptile (diet maker and breeder). Checked Oct 30, 2026.
- 3Caring for your Crested GeckoRSPCA. Checked Oct 30, 2026.
Update history
- : First published; identified the schedule as ReptiFiles guidance and explained differing diet recommendations.
HerpWise Editorial · About the author and review process
HerpWise Editorial summarizes published veterinary, welfare and specialist care guidance. The sources and check date are listed on each guide. Veterinary review is credited separately when completed.
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