Exo Terra Coco Husk 26.4L Bag | Coconut Fibre Terrarium Substrate

The ET Coco Husk 26.4L Bag (PT2787) is a natural coconut husk fibre substrate designed for tropical and humid terrarium set-ups. Sourced from sustainably grown coconut plantations in Vietnam and processed to a consistently clean, safe standard, it suits humidity-loving reptiles, amphibians, and invertebrates — including burrowing and digging species. If you keep frogs, salamanders, boas, or any species that depends on stable ambient humidity, this is a substrate worth knowing well.

Natural Humidity Regulation

Coconut husk fibre has strong hygroscopic properties, meaning it actively draws in and releases moisture to help stabilise humidity levels within the enclosure. Maintaining appropriate air humidity supports healthy shedding and reduces the risk of respiratory issues — both common concerns in tropical species kept in drier ambient conditions. Simply mist or water the substrate to the level your species requires.

Processing and Safety

This substrate is ground, sieved, triple machine washed to remove residual salt content, then machine dried and heat-treated to reduce bacterial contamination. It is non-toxic and free from chemicals and pesticides, making it safe for direct contact with sensitive species including amphibians and invertebrates. It can also be safely composted after use.

Soil Health and Drainage

• Strong water retention capacity helps sustain humidity between misting sessions
• Improved drainage and aeration within the substrate layer
• Promotes the growth of beneficial waste-reducing microorganisms, keeping the enclosure fresher for longer
• Highly resistant to mould and decay
• Odour-reducing properties support a cleaner vivarium environment

How to Use

Spread a layer of 5–10 cm across the terrarium floor, then mist or water according to your species' humidity requirements. Use a hygrometer to monitor levels accurately. Spot clean daily and replace the substrate fully when necessary. For enclosures with high ventilation or demanding humidity requirements, placing a substrate heater beneath the terrarium can help drive moisture upward through the coco husk.

Sustainability

Coco husk is a by-product of coconut cultivation, making it a genuinely renewable substrate choice. The raw material is sourced from plantations in tropical Asia (country of origin: Vietnam), and the finished substrate can be composted in your garden at end of life — closing the loop on waste.

At 26.4 litres, this bag gives you enough substrate to fill and top up a generously sized enclosure, and the consistent processing quality means every bag performs reliably — important when you are dialling in conditions for a sensitive collection.