{"product_id":"et-rain-forest-substrate-4-4l-pt3116","title":"Exo Terra Rain Forest Substrate 4.4L - PT3116 | Vivarium Bark \u0026 Moss Mix","description":"\u003cp\u003eThe ET Rain Forest Substrate 4.4L (PT3116) is a natural terrarium substrate blended from sustainable Maritime Pine bark and Sphagnum moss — designed specifically for tropical vivarium set-ups housing humidity-dependent reptiles, amphibians, and invertebrates. It handles moisture management actively, making it a practical choice for keepers who want a substrate that works with their environment rather than against it.\u003c\/p\u003e\u003ch3\u003eComposition \u0026amp; Sourcing\u003c\/h3\u003e\u003cp\u003eThe mix combines sustainably sourced Maritime Pine bark with natural Sphagnum moss. Both components are biodegradable, and the substrate is heat-treated to reduce bacterial contamination before use — an important consideration for any enclosure housing sensitive species.\u003c\/p\u003e\u003ch3\u003eHumidity Regulation\u003c\/h3\u003e\u003cp\u003eThe Sphagnum moss component gives this substrate strong hygroscopic properties, meaning it draws in and holds moisture before releasing it gradually back into the enclosure. This passive humidity regulation supports stable ambient moisture levels without constant keeper intervention, which is directly beneficial for respiratory health and successful shedding in tropical species.\u003c\/p\u003e\u003ch3\u003ePlant \u0026amp; Root Compatibility\u003c\/h3\u003e\u003cp\u003eThe bark particle size and shape are suited to planted vivarium layouts — irrigation drains through effectively while the structure retains enough air pockets for healthy root growth. This makes it a reliable base layer for bioactive or naturalistic set-ups where live planting is part of the design.\u003c\/p\u003e\u003ch3\u003eSuitable Species \u0026amp; Environments\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTropical rainforest reptiles, amphibians, and invertebrates\u003c\/li\u003e\n\u003cli\u003eSpecies requiring consistently elevated ambient humidity\u003c\/li\u003e\n\u003cli\u003eNaturalistic and bioactive vivarium builds\u003c\/li\u003e\n\u003cli\u003eAny enclosure where shedding support and respiratory health are a priority\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor keepers building or maintaining a tropical vivarium, the ET Rain Forest Substrate 4.4L offers a well-considered blend of humidity control, plant compatibility, and natural aesthetics — all from a substrate that's been heat-treated for safer use straight from the bag.\u003c\/p\u003e","brand":"Peregrine","offers":[{"title":"Default Title","offer_id":54148506059089,"sku":"SHR004","price":5.16,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/0403\/8225\/files\/SHR004_1.jpg?v=1782599468","url":"https:\/\/viperia.co.uk\/products\/et-rain-forest-substrate-4-4l-pt3116","provider":"Viperia UK","version":"1.0","type":"link"}