📏 Enclosure Size:

A single adult Smeringurus mesaensis is best housed in a small to medium terrestrial enclosure, with a recommended minimum of 20 × 20 × 20 cm, although additional floor space is always beneficial. This species is not an active climber, and enclosure design should prioritise horizontal space rather than height.

Unlike lithophilic vaejovids, S. mesaensis is a psammophilous burrower, and therefore requires sufficient depth to construct natural retreats. Enclosures should provide at least 10cm of suitable substrate. Ventilation should be moderate, maintaining a dry surface environment while preventing stagnant air.

🌡️ Temperature:

Maintain a thermal range of approximately 24–28°C, with a gentle gradient if possible. This reflects natural desert conditions where surface temperatures fluctuate but burrows provide thermal buffering.

A localised warm side around 26–28°C and a cooler area around 24°C is appropriate. Constant high heat is unnecessary and can be detrimental in captivity, as natural systems allow vertical escape into cooler substrate layers. Avoid sustained temperatures above 32°C, particularly in enclosed environments.

💧 Humidity:

Ambient humidity should remain low (approximately 30–40%), consistent with arid desert conditions. However, this species relies on subsurface microclimates within burrows, where humidity is naturally higher than the surface.

This should be replicated by maintaining a dry surface layer, with slight, localised moisture deeper within the substrate. The enclosure should never be uniformly moist, and routine misting is unnecessary. The goal is to replicate a humidity gradient, not elevated ambient humidity.

🌱 Substrate:

Substrate is the most critical aspect of care for this species. Use a sand-dominant, compactable mix, ideally composed of:

• 70–90% sand

• 10–30% fine soil or clay fraction

This allows the substrate to hold structure and support burrow formation without collapsing.

Depth should be a minimum of 10cm, with deeper layers strongly preferred. Unlike rock-dwelling species, S. mesaensis does not rely on flat stone refuges as its primary shelter, instead constructing self-excavated burrows.

Avoid:

• Pure loose dune sand (collapses)

• Organic substrates such as coco fibre

• Hard, overly compact clay-only mixes

The substrate should be stable, slightly cohesive, and capable of maintaining burrow integrity.

⏰ Feeding Schedule:

Feed adults approximately every 10–14 days with appropriately sized live prey such as:

• Small crickets

• Roaches

• Occasional mealworms or waxworms (not as staples)

This species is a burrow-based ambush predator, and prey should ideally be offered near the burrow entrance to reflect natural feeding behaviour.

Juveniles can be fed once per week on smaller prey. Uneaten food should be removed within 24 hours.

Adults may fast for extended periods, particularly prior to moulting or during cooler phases, which is normal and not indicative of poor health.