Tokay gecko enclosure setup advice

Reptile welfare is almost entirely determined by getting the environment right — temperature gradient, UV lighting, humidity, and substrate all need to match the specific species' natural habitat. Getting this wrong causes chronic stress and illness, and tokay geckos in particular are often kept in setups that are far too dry, too small, or oriented horizontally when they need vertical climbing space. So: how old is your tokay, and what are you setting up or trying to improve — are you starting from scratch or upgrading an existing enclosure?

Good that you're doing this properly — tokays coming from bad situations often arrive stressed and defensive, and the right enclosure makes a real difference to settling them down. For an adult tokay you need a tall, front-opening glass terrarium with strong ventilation. Minimum 45x45x60cm, ideally larger. They're arboreal and need height to climb and thermoregulate vertically. They also need sustained humidity of 70–80% with a dip at night, so the build quality of the enclosure matters — mesh tops lose humidity too fast. What's your budget roughly, and do you have any lighting or heating gear already, or is this a full build from nothing?

Then start with the enclosure as your foundation, because everything else is built around it. I'd recommend the Exo Terra Glass Terrarium 45x45x90cm — the tall 90cm height is ideal for a tokay, the double front doors let you work inside without going over the top (which stresses arboreal geckos), and the raised bottom frame fits a heat mat underneath. The front ventilation strip and mesh top give you airflow control, and you can partially cover the mesh to manage humidity. It's robust, widely available, and genuinely designed for the kind of humid arboreal setup a tokay needs. Once you have that, we can talk through lighting, heating, substrate, and plants — but get the box right first and everything else fits into place.

The key is misting heavily once or twice a day — morning and evening — and letting it partially dry out overnight. That mimics the natural humid/dry cycle and prevents stagnation. A pressure sprayer works fine to start with. You want live or high-quality artificial plants to hold moisture in the leaves, a moisture-retaining substrate like coconut fibre or a bioactive mix, and some cork bark hides which absorb and release humidity slowly. Airflow is what prevents respiratory issues — not low humidity itself. As long as the terrarium ventilates properly between misting sessions, you won't get the stagnant wet conditions that cause problems. If you want to automate it later, a reptile misting system like the Exo Terra Monsoon is worth it, but manual misting is fine to start.

They're crepuscular rather than strictly nocturnal in the wild, and current evidence suggests low-level UVB is genuinely beneficial even if they're not basking species. A 5.0 or low-output 6% UVB tube on a 10–12 hour cycle supports vitamin D3 synthesis and appears to improve long-term health and temperament. It's not optional if you want best practice. Use a T5 HO 5.0 tube — Arcadia 6% or Zoo Med ReptiSun 5.0 are both solid choices. Mount it inside the canopy at one end so there's a UVB gradient and the gecko can choose its exposure. Pair that with a low-wattage basking spot of around 30–32°C at the top, ambient at 24–27°C, and you've got a well-balanced setup.