Leopard gecko: why offering tiny insects can nearly double its activity
Published by Planète Pets · managing editor: Clément Lacaille · how our guides are written
A leopard gecko that swallows a fat mealworm in one gulp may look satisfied, but a German study suggests it is actually more bored than one hunting several small prey items one by one. Reason enough to rethink how you feed this species, at no extra cost. Our enrichment guidance is gathered in the reptile toys and enrichment section.
An eleven-month study on sensory stimulation
Krönke and Xu published a study in 2023 in the journal Animals on sensory stimulation as a means of sustained enhancement of well-being in the leopard gecko (Eublepharis macularius) (see the study). Instead of the usual large prey (big crickets, adult mealworms), the researchers fed the geckos very small insects, multiplying the number of prey items to spot and catch at each meal. After eleven months on this feeding pattern, the frequency of observed behaviours — movement, exploration, hunting postures — had nearly doubled compared with the start of the study.
What this changes about everyday feeding
This sustained rise in activity, measured over close to a year rather than a few days, shows that a change as simple as prey size is enough to sensorially enrich a leopard gecko's daily life, with no extra gear or cost.
- Split prey up instead of sizing it up: several small crickets or phoenix worms to hunt one at a time stimulate more than a single large prey item swallowed in one motion.
- Scatter insects around the terrarium instead of serving them together in a dish, to extend the searching behaviour the study links to the rise in activity.
- Don't expect an instant effect: the measured increase built up gradually over several months, not within the first week.
This approach builds on the five enrichment types already tested in our article on enriching a leopard gecko, and pairs with the guidance in our article on feeding a leopard gecko day to day.
Frequently asked questions
Should large prey be stopped altogether?
No, the key is varying the size rather than shifting it permanently downward; alternating large and small prey across meals stays consistent with the study's findings.
Does this change cover calcium needs on its own?
No, calcium and vitamin D3 supplementation remains essential regardless of prey size; this is only an adjustment to meal format, not to the diet itself.
Does this result also apply to an older leopard gecko?
The study followed adults in standard captivity; nothing suggests the principle stops applying with age, but an older or unwell animal should first be assessed by an exotics vet before any diet change. Find all our guides on the reptile hub.
An accessory from our shop for this use: Ventilated clear box for feeder insects, transport and quarantine, 19 cm (€17.90) · the whole shop
This guide is part of Planète Pets’s Reptiles universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.
