Exo Terra Coco Husk Bag

Exo Terra Coco Husk is a natural coconut fibre substrate designed for tropical and humid terrarium setups. Sourced from plantation-grown coconut husks in Vietnam (Cocos nucifera L.), it suits reptiles, amphibians, and invertebrates that need reliable humidity, soft ground cover, or a substrate they can burrow and dig through. Available in a range of bag sizes to suit enclosures of different scale.

Humidity Regulation

Coconut husk fibre is naturally hygroscopic, meaning it absorbs and releases moisture to help stabilise ambient humidity within the terrarium. This passive regulation supports healthy respiratory function and aids clean, complete shedding — both of which depend on consistent humidity levels in tropical and forest species.

Processing and Safety

• Triple machine washed to remove residual salt content
• Machine dried and heat-treated to reduce bacterial contamination
• Ground and sieved for consistent texture throughout
• Non-toxic, free from chemicals and pesticides
• Resistant to mould and decay

Substrate Performance

Beyond humidity, Coco Husk actively improves the conditions inside the vivarium. Its structure supports good aeration and drainage, and promotes the growth of beneficial waste-reducing organisms that help keep the enclosure fresh between full substrate changes. It is also odour-reducing in use.

Sustainability

The fibre is a by-product of coconut plantation farming — a renewable resource rather than a mined or synthetically produced material. Once the substrate has run its course, it can be composted safely in the garden rather than going to landfill.

How to Use

Spread a layer of 5–10 cm across the terrarium floor and mist or water to reach the humidity level your species requires. Monitor humidity with a hygrometer and spot clean daily, replacing the substrate completely as needed. The range of available sizes means you can match the bag to your enclosure without unnecessary waste.

Coco Husk is a straightforward, well-proven substrate choice for keepers who want a natural, functional base layer that does the work without requiring constant intervention. Choose the bag size that suits your setup from the options above.