Tokay Gecko Enrichment: A 2024 Study Says Keep Them in Pairs
Everyone says house tokays alone. A 2024 study moved captive-bred tokays from single to pair housing and found the opposite.
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Tokay Gecko Enrichment: A 2024 Study Says Keep Them in Pairs
The standard line on tokays is that they are aggressive, solitary and best left alone. A 2024 study tested part of that and came back with the opposite answer. For everything else about the species, see our complete Tokay Gecko care guide.
Researchers measured enclosure use, basking and hiding as captive-bred tokay geckos went from single to pair housing. Socially deprived lizards were more likely to move and hide before feeding, and the authors concluded that pair housing improves tokay welfare. This is the most current evidence on the species, and it points somewhere the hobby does not.
What the Research Actually Says
The study, published in Applied Animal Behaviour Science in 2024, tracked how captive-bred tokays used their enclosure across the transition from being housed singly to being housed in pairs. The measured behaviors were space use, basking and hiding.
The finding: when socially deprived, the lizards were more likely to move and hide before feeding, and the results indicate pair housing improves welfare in this species. A separate body of work on tokay development looks at how environment and family shape captive welfare, pointing the same direction.
Hiding is the easiest welfare signal to misread. A gecko that stays out of sight is usually described as shy, settling in, or simply nocturnal. In this study it was the measure that separated the socially deprived condition from the paired one.
The honest caveat, and it needs stating in any guide: this is one study on captive-bred animals under observation. It is not a licence to drop two wild-caught adult tokays into a tank and walk away. Pairing needs quarantine, careful introduction, enough space and cover for both, and a genuine plan for separating them.
Vertical Structure That Is Actually Usable
Tokays are arboreal and spend their lives on vertical surfaces. A tall enclosure with nothing in it is not enrichment, it is a taller empty box.
Large branches, cork slabs run vertically, and dense live planting turn height into territory. Live plants do a second job here by holding humidity, which this species needs, and by creating visual cover so the gecko can be somewhere other than inside a hide. Our tank setup guide covers dimensions and humidity properly.
Retreats at Every Level
A tokay should be able to be concealed at the top of the enclosure, not just at the bottom. Vertical cork tubes, tight gaps behind slabs, and planting dense enough to disappear into give the animal choices about where to be hidden rather than one correct answer.
That matters more for a defensive species than for a placid one. Defensiveness is what an animal reaches for when it has no better option, and the point of cover is to give it a better option.
Feeding as Hunting
Tokays are ambush predators and will take prey from height. Varying where and when food appears, offering live prey it has to pursue rather than collect, and feeding in the evening to match the activity window all follow the pattern that gecko feeding-enrichment research supports.
The leopard gecko work found feeding among the strongest enrichment types tested, and while that is a different genus, the mechanism transfers better than most.
Priority Order
- Enclosure height with real climbing structure in it
- Social housing, treated carefully and with an exit plan
- Retreats available at every level, not just the floor
- Live planting for cover and humidity
- Feeding presentation and prey pursuit
- A low UVB gradient
- Novel objects, last
What Not to Do
Do not pair two adult tokays casually on the strength of one study, since the research was on captive-bred animals under observation and needs replicating in a home setting with care. Do not read constant hiding as the species being shy. Do not build height without filling it, because empty vertical space is not usable space. Do not handle for enrichment, since this species is enriched through its enclosure and stressed by interaction. And see our handling guide for what necessary handling should look like.
For the rest of their care, see our Tokay Gecko cost guide, health issues guide, and tank setup guide, or browse the rest of our Geckos care guide category.
Sources & Further Reading
4 sources
- Changes in enclosure use and basking behaviour associated with pair housing in tokay geckos. Applied Animal Behaviour Science (2024)
- Understanding tokay gecko development: how environment and family shape captive welfare
- Bashaw MJ et al. (2016). Does enrichment improve reptile welfare? Leopard geckos respond to five types of environmental enrichment. Applied Animal Behaviour Science
- Reaction to novel objects and faecal glucocorticoid metabolite levels in two species of nocturnal geckos
❓ Frequently Asked Questions
Should tokay geckos really be housed in pairs?
A 2024 study in Applied Animal Behaviour Science measured changes in enclosure use, basking and hiding as captive-bred tokay geckos moved from single to pair housing, and concluded that pair housing improves tokay gecko welfare. That runs against the standard advice, and it is the most current evidence available. It does not mean any two tokays can be put together without introduction, monitoring or an exit plan.
What did the socially isolated geckos actually do?
When socially deprived, the lizards were more likely to move and hide before feeding. Hiding is easy to misread as a shy animal settling in, and the study frames it as a welfare signal instead.
Is a tall enclosure more important than a wide one for tokays?
Height matters more for this species than for terrestrial geckos, because tokays are arboreal and spend their time on vertical surfaces. But usable vertical structure matters more than raw height: a tall empty box is wasted space, and cork slabs, branches and planting are what turn it into territory.
Are tokays too aggressive for enrichment to matter?
Their reputation is for defensiveness rather than aggression, and a defensive animal is one that feels it has no better option. Cover, height and secure retreats reduce how often a tokay reaches for that response, which is a welfare goal in its own right.
Do tokay geckos need UVB?
Provision is increasingly treated as a welfare input rather than optional for nocturnal species, and a low-output gradient the animal can move within costs little. The general reptile literature has moved on this considerably from the older position that nocturnal geckos need none.
How much should I handle a tokay?
Little to none as a routine. This is a species best enriched through its enclosure rather than through interaction, and handling is a stressor here rather than a stimulus.
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Written by Michael Ryan
Mike keeps two rescued bearded dragons, Dex and Cera, and writes the care guides on BeastlyFacts from his own research and mistakes. He is not a veterinarian.
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