Atheris squamigera

Vertically oriented arboreal terrarium, richly planted and fitted with numerous horizontal branches. A perfectly secure and lockable closure (venomous species), ideally with an airlock or escape-proof device.

Minimum dimensions for an adult; height and the density of branches/plants take priority over floor area. Provide multiple perches at different heights and dense foliage (live or artificial plants) for visual refuge. A good ventilation/humidity balance to avoid stagnant air while maintaining high humidity.

High and stable humidity. Regular misting (1 to 2 times/day) with partial drying periods in between; avoid permanent condensation and waterlogged substrate, which promote respiratory and skin infections.

A substrate that retains moisture well, combined with a layer of leaf litter and moss. Keep it humid without being waterlogged and promptly remove soiling and uneaten prey to limit mould and bacteria.

Not essential (a nocturnal undergrowth species), but low UVB lighting (Ferguson zone 1, low-power T5 or low-% tube filtered by the foliage) is beneficial for metabolism and behaviour. Always provide dense shaded areas.

A small dish of clean water renewed frequently. The animal drinks mainly the droplets deposited on the foliage and décor during misting: these are essential to its hydration.

Central and West Africa: humid tropical forests at low and mid altitude (Nigeria, Cameroon, Gabon, Congo, DRC, Angola, Uganda, etc.). A strictly arboreal species of canopies and dense undergrowth.

Carnivore — Rodents (suitably sized mice/pinkies), and more occasionally lizards and amphibians.

Feed with appropriately sized dead (thawed) prey, every 1 to 2 weeks for an adult, spacing meals out to avoid obesity. Neonates are NOTORIOUSLY DIFFICULT to start: they often require scented prey (scenting with gecko/frog) or even assist-feeding. Feeding is done exclusively with long tongs, as the animal remains venomous.

Seasonal breeding triggered by a thermal/photoperiodic drop and a humidity peak. Litters of 5 to 15 neonates with remarkable colour polymorphism within a single litter. Rearing the juveniles is tricky (difficult feeding start). Breeding should be reserved for keepers experienced with venomous species.

• Respiratory infections (linked to insufficient ventilation or overly waterlogged substrate)
• Dysecdysis (incomplete sheds) in case of inadequate humidity
• Stomatitis (mouth necrosis / 'mouth rot')
• Internal and external parasitism, very common in imported wild-caught specimens
• Dehydration and feeding refusal linked to acclimatisation stress